#blocklists — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #blocklists, aggregated by home.social.
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If you want to avoid Israeli online resources and supporters of Israeli apartheid, genocide, and wars, here’s a maintained community blocklist for the AWAGAM blocker (no affiliation):
https://gitlab.com/ehud48/blocklist/-/raw/main/blocklist.json blocks 3 TLDs, 191 domains, and 366 URLs.
Import in the AWAGAM extension—and consider proposing edits or forking to extend the list (happy to feature your own blocklist, too)!
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If you want to avoid Israeli online resources and supporters of Israeli apartheid, genocide, and wars, here’s a maintained community blocklist for the AWAGAM blocker (no affiliation):
https://gitlab.com/ehud48/blocklist/-/raw/main/blocklist.json blocks 3 TLDs, 191 domains, and 366 URLs.
Import in the AWAGAM extension—and consider proposing edits or forking to extend the list (happy to feature your own blocklist, too)!
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Have the topics of shared blocklists and shared content labellers been discussed at a past FediForum? I'd like to review the notes if so.
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The Community Blocklist blocks a lot. But the Threat Forecast Blocklist goes further:
📊 ~50% more attackers blocked
📊 1:40 prevention ratio
📊 Built from your own attack patternsAvailable for the CrowdSec Console Premium plan, and still one of the most powerful ways to reduce noise before it starts.
Learn more 👉 https://crowdsec.net/blog/threat-forecast-blocklist-release
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The Community Blocklist blocks a lot. But the Threat Forecast Blocklist goes further:
📊 ~50% more attackers blocked
📊 1:40 prevention ratio
📊 Built from your own attack patternsAvailable for the CrowdSec Console Premium plan, and still one of the most powerful ways to reduce noise before it starts.
Learn more 👉 https://crowdsec.net/blog/threat-forecast-blocklist-release
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CW: Content Warning: Fediblock, Politics, USPol
The Speakeasy has voted to pre-emptively defederate all known United States federal government domains due to their status as a rogue state, their wanton rights violations, their bigotry, and their use of official government channels for authoritarian propaganda.
In the interest of being good fedi citizens, we have shared our blocklist (split into six parts for ease of management; the list is 1300 entries long) at: https://speakeasy.bardicperspiration.com/blocklists.html
We exemopted local and state sites; we may create a list for those later for those interested.
You are free to use or edit this as you like.
If you are going to use the bloclklist, please do make sure that your members understand that this is not a security fix. If the federal government wants to scrape public posts, it can do so pretty easily. This may prevent some future propaganda from showing up in someone's feed but honestly, it's meant to call out egregiously horrifying behavior by a state actor, not as a security measure.
We see this as a small action to show the world where we stand, in a way that we control, and we hope our fedi allies join us in our small act of protest.
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CW: Content Warning: Fediblock, Politics, USPol
The Speakeasy has voted to pre-emptively defederate all known United States federal government domains due to their status as a rogue state, their wanton rights violations, their bigotry, and their use of official government channels for authoritarian propaganda.
In the interest of being good fedi citizens, we have shared our blocklist (split into six parts for ease of management; the list is 1300 entries long) at: https://speakeasy.bardicperspiration.com/blocklists.html
We exemopted local and state sites; we may create a list for those later for those interested.
You are free to use or edit this as you like.
If you are going to use the bloclklist, please do make sure that your members understand that this is not a security fix. If the federal government wants to scrape public posts, it can do so pretty easily. This may prevent some future propaganda from showing up in someone's feed but honestly, it's meant to call out egregiously horrifying behavior by a state actor, not as a security measure.
We see this as a small action to show the world where we stand, in a way that we control, and we hope our fedi allies join us in our small act of protest.
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The update you have been waiting for:
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html (tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)
now has the complete 2025 data in place. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
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The update you have been waiting for:
"Eighteen Years of Greytrapping - Is the Weirdness Finally Paying Off?" https://nxdomain.no/~peter/eighteen_years_of_greytrapping.html (tracked https://bsdly.blogspot.com/2025/08/eighteen-years-of-greytrapping-is.html)
now has the complete 2025 data in place. #openbsd #spamd #greytrapping #spam #antispam #cybercrime #spamtraps #blocklists
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@mattblaze I love my keyword filters or #blocklists. Some people or hashtags I follow also post and contain things I don't care about at all. Nothing outrageous, imo, my two main lists block lots of sports and as much generated slop as I can block😋
Sometimes things are not caught and I'm happy to add to my lists, while keeping up to speed on everything else these good people talk about.
The bestest thing is that the others can enjoy discussing, for example, sports to their heart's content ☺️
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@mattblaze I love my keyword filters or #blocklists. Some people or hashtags I follow also post and contain things I don't care about at all. Nothing outrageous, imo, my two main lists block lots of sports and as much generated slop as I can block😋
Sometimes things are not caught and I'm happy to add to my lists, while keeping up to speed on everything else these good people talk about.
The bestest thing is that the others can enjoy discussing, for example, sports to their heart's content ☺️
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#Fediverse #Blocklists: #Moderation in Noncapitalist #SocialMedia
> the paper explores how fediverse blocklist developers attempt to mitigate the problems of lists while also generating knowledge about content moderation@aram York University
2025-09-20: https://www.triple-c.at/index.php/tripleC/article/view/1556
#SciComm #WissKomm #FediModeration #CulturalStudies #SocialScience #SocialMedia #ContentModeration
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#Fediverse #Blocklists: #Moderation in Noncapitalist #SocialMedia
> the paper explores how fediverse blocklist developers attempt to mitigate the problems of lists while also generating knowledge about content moderation@aram York University
2025-09-20: https://www.triple-c.at/index.php/tripleC/article/view/1556
#SciComm #WissKomm #FediModeration #CulturalStudies #SocialScience #SocialMedia #ContentModeration
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Stop mass exploitation attempts before they reach your perimeter with #CrowdSecBlocklists.
🔹 What makes CrowdSec Blocklists unique?
- Real-time protection powered by a global community of defenders 🌍
- Up to 80% reduction in security alert volume
- 5% daily rotation of malicious IPs for up-to-date coverage
- 36% of aggressive IPs remain unknown to any other vendor for at least a week
- On average, we’re 7–60 days ahead in detecting malicious IPs compared to other blocklists
- 16% of these IPs stay undiscovered by others for 15–20 daysPreemptively block malicious IPs, and stay ahead of attackers.
👉 Learn more: http://crowdsec.net/blocklists
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Stop mass exploitation attempts before they reach your perimeter with #CrowdSecBlocklists.
🔹 What makes CrowdSec Blocklists unique?
- Real-time protection powered by a global community of defenders 🌍
- Up to 80% reduction in security alert volume
- 5% daily rotation of malicious IPs for up-to-date coverage
- 36% of aggressive IPs remain unknown to any other vendor for at least a week
- On average, we’re 7–60 days ahead in detecting malicious IPs compared to other blocklists
- 16% of these IPs stay undiscovered by others for 15–20 daysPreemptively block malicious IPs, and stay ahead of attackers.
👉 Learn more: http://crowdsec.net/blocklists
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@meljoann oooo, I really like that you can create lists and host them wherever you want too. I've been using GoToSocial for months and I had no idea this feature was a thing :3
I know it's been very slow and not inclusive enough, but seeing fedi slowly adopt new moderation features has been nice. I'm thankful for the marginalized people who have demanded these features for years. Without them, none of this stuff would exist. Good on GoToSocial for prioritizing this in beta too :blue_heart_sparkles:
It will also be interesting to see if it can work with FASP, so that mastodon admins can also setup a service to relay them.
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@meljoann oooo, I really like that you can create lists and host them wherever you want too. I've been using GoToSocial for months and I had no idea this feature was a thing :3
I know it's been very slow and not inclusive enough, but seeing fedi slowly adopt new moderation features has been nice. I'm thankful for the marginalized people who have demanded these features for years. Without them, none of this stuff would exist. Good on GoToSocial for prioritizing this in beta too :blue_heart_sparkles:
It will also be interesting to see if it can work with FASP, so that mastodon admins can also setup a service to relay them.
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#moderation is a shit job. always was, always will be. it's a human problem, no tech can dispel the chore. someone always has to be there, moderating
of course tooling can help immensely. the tooling shifts and manages the chore. that shift can be in good ways. also maybe unintentional bad ways
you know all this
i'm just laying it out so i can say:
on #bluesky, and on #mastodon, as you say, #blocklists create new terrible problems
i'm saying this tooling shift is a bad idea
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#moderation is a shit job. always was, always will be. it's a human problem, no tech can dispel the chore. someone always has to be there, moderating
of course tooling can help immensely. the tooling shifts and manages the chore. that shift can be in good ways. also maybe unintentional bad ways
you know all this
i'm just laying it out so i can say:
on #bluesky, and on #mastodon, as you say, #blocklists create new terrible problems
i'm saying this tooling shift is a bad idea
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This kind of came a bit unexpectedly today, but I have a new article out:
https://www.triple-c.at/index.php/tripleC/article/view/1556
It focuses on those most controversial moderation tools on the #fediverse: #blocklists. I consider the philosophy and practice of listing to argue that those who run blocklist services work hard to mitigate their problems.
I also make a case that we simply need more scholarship on content moderation on #noncentralized, noncommercial social media.
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This kind of came a bit unexpectedly today, but I have a new article out:
https://www.triple-c.at/index.php/tripleC/article/view/1556
It focuses on those most controversial moderation tools on the #fediverse: #blocklists. I consider the philosophy and practice of listing to argue that those who run blocklist services work hard to mitigate their problems.
I also make a case that we simply need more scholarship on content moderation on #noncentralized, noncommercial social media.
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📚 A new school year means new students, new devices… and an even heavier workload for education cybersecurity teams. Between endless alerts and constant pressure to stay ahead of threats, it can feel overwhelming.
That’s where the CrowdSec Education Blocklist helps:
1️⃣ Preemptively block malicious IPs flagged by other educational institutions
2️⃣ Cut SIEM logs by 60% to save time & budget
3️⃣ Deploy in just a few clicksBest of all, it’s affordable with our exclusive back-to-school offer 👉 https://crowdsec.net/solutions/education
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📚 A new school year means new students, new devices… and an even heavier workload for education cybersecurity teams. Between endless alerts and constant pressure to stay ahead of threats, it can feel overwhelming.
That’s where the CrowdSec Education Blocklist helps:
1️⃣ Preemptively block malicious IPs flagged by other educational institutions
2️⃣ Cut SIEM logs by 60% to save time & budget
3️⃣ Deploy in just a few clicksBest of all, it’s affordable with our exclusive back-to-school offer 👉 https://crowdsec.net/solutions/education
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Back to school, back to security 📚🎓
Over 950 universities and schools worldwide already trust CrowdSec’s real-time, behavior-based threat detection to keep their networks safe.
Now, we’re making it even easier for educational institutions to protect their campuses with an exclusive Back-to-School discount.
👉 Learn more: https://crowdsec.net/solutions/education
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Back to school, back to security 📚🎓
Over 950 universities and schools worldwide already trust CrowdSec’s real-time, behavior-based threat detection to keep their networks safe.
Now, we’re making it even easier for educational institutions to protect their campuses with an exclusive Back-to-School discount.
👉 Learn more: https://crowdsec.net/solutions/education
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With the source(s) offline, there's no way to confirm anything against the originals or even alert the author that there are issues.
So... if you are using updatable #blocklists collected from #3rdParty sources and you're seeing issues that may be associated with DNS validation, it would be a good time to verify your sources... and that they haven't been compromised.
/fin
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2/?
The quick fix was to reset the network to point to #Quad9 as a temporary DNS default.
After digging back in a day later, it seems there are multiple points of failure, all beginning on July 31st at 5:32am, and it includes what I'd call #poisoned #blocklists.
My DNS updates its internal cached list from external sources every 2 hours. Blocking reports showed at least 3 separate lists that were tainted, and all were coming from ente(dot)dev.
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In 2013 I wrote up "Maintaining A Publicly Available Blacklist - Mechanisms And Principles" (also https://bsdly.blogspot.com/2013/04/maintaining-publicly-available.html) . TL;DR: blocklisting is a kind of public shaming, be sure your process is verifiable and transparent.
Minor edits today, links to resources and #eurobsdcon inside. #blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
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In 2013 I wrote up "Maintaining A Publicly Available Blacklist - Mechanisms And Principles" (also https://bsdly.blogspot.com/2013/04/maintaining-publicly-available.html) . TL;DR: blocklisting is a kind of public shaming, be sure your process is verifiable and transparent.
Minor edits today, links to resources and #eurobsdcon inside. #blocklists #spamtraps #antispam #smtp #spamd #openbsd #freebsd #security #cybercrime
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The long version of why you need key authentication for your SSH servers - "The Hail Mary Cloud and the lessons learned" https://nxdomain.no/~peter/hailmary_lessons_learned.html #ssh #keys #passwordgroping #unix #linux #openbsd #freebsd #pf #packetfilter #statetracking #blocklists #cybercrime #hacking
Also, The 4th edition of the Book of PF is coming soon: https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html
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The long version of why you need key authentication for your SSH servers - "The Hail Mary Cloud and the lessons learned" https://nxdomain.no/~peter/hailmary_lessons_learned.html #ssh #keys #passwordgroping #unix #linux #openbsd #freebsd #pf #packetfilter #statetracking #blocklists #cybercrime #hacking
Also, The 4th edition of the Book of PF is coming soon: https://nxdomain.no/~peter/yes_the_book_of_pf_4th_ed_is_coming.html
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💭 Did you know? ⟶ CrowdSec Platinum Blocklists can block 92% of malicious traffic at the edge before it ever reaches your WAF or application layer.
💡That means fewer alerts, fewer resources wasted, and fewer breaches.
Learn more: https://www.crowdsec.net/blocklists
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💭 Did you know? ⟶ CrowdSec Platinum Blocklists can block 92% of malicious traffic at the edge before it ever reaches your WAF or application layer.
💡That means fewer alerts, fewer resources wasted, and fewer breaches.
Learn more: https://www.crowdsec.net/blocklists
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Following up on previous, the LinkedIn discussion revealed that there are people who have not heard about greylisting.
So here is my 2012 piece with updates, "In The Name Of Sane Email: Setting Up OpenBSD's spamd(8) With Secondary MXes In Play - A Full Recipe" https://nxdomain.no/~peter/in_the_name_of_sane_email.html
#spamd #antispam #spamd.conf #OpenBSD #blocklists #blacklists #greytrapping #greylisting #spam
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Following up on previous, the LinkedIn discussion revealed that there are people who have not heard about greylisting.
So here is my 2012 piece with updates, "In The Name Of Sane Email: Setting Up OpenBSD's spamd(8) With Secondary MXes In Play - A Full Recipe" https://nxdomain.no/~peter/in_the_name_of_sane_email.html
#spamd #antispam #spamd.conf #OpenBSD #blocklists #blacklists #greytrapping #greylisting #spam
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🎓 Hackers are going back to school. Not to learn, but to exploit vulnerabilities.
Enter CrowdSec’s latest drop: the Education Blocklist and Public Sector Blocklist, built to stop threats before they disrupt your operations.
Here’s what you get:
• Real-time, around-the-clock protection
• Backed by a global community of schools & public institutions
• Simple, fast deploymentDiscover the blocklists: https://crowdsec.net/blog/introducing-education-and-public-sector-blocklists
#cybersecurity #infosec #blocklists #education #publicsector
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🎓 Hackers are going back to school. Not to learn, but to exploit vulnerabilities.
Enter CrowdSec’s latest drop: the Education Blocklist and Public Sector Blocklist, built to stop threats before they disrupt your operations.
Here’s what you get:
• Real-time, around-the-clock protection
• Backed by a global community of schools & public institutions
• Simple, fast deploymentDiscover the blocklists: https://crowdsec.net/blog/introducing-education-and-public-sector-blocklists
#cybersecurity #infosec #blocklists #education #publicsector
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The Fediverse, a network of independently run servers using the ActivityPub protocol, is #segmented by #serverblocks.
🚧 These #blocks, often based on imported #blocklists, create #echochambers and hinder message threads.
🏔️ While #decentralisation is a goal, the Fediverse’s current state, with heavy-handed #moderation and #serverblocking, undermines this principle.
👉 https://battlepenguin.com/tech/the-broken-fediverse?Fedizen.EU #Fedizen #Fediverse #ActivityPub #News
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The Fediverse, a network of independently run servers using the ActivityPub protocol, is #segmented by #serverblocks.
🚧 These #blocks, often based on imported #blocklists, create #echochambers and hinder message threads.
🏔️ While #decentralisation is a goal, the Fediverse’s current state, with heavy-handed #moderation and #serverblocking, undermines this principle.
👉 https://battlepenguin.com/tech/the-broken-fediverse?Fedizen.EU #Fedizen #Fediverse #ActivityPub #News
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💭 What if 50% of the malicious IPs you block aren’t even on the radar of 89 out of 92 top threat intel vendors?
That’s exactly what #CrowdSec delivers.
🛡️ Powered by a global community analyzing live attacks, 50% of our malicious IPs are unique. Get visibility others don’t have.
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💭 What if 50% of the malicious IPs you block aren’t even on the radar of 89 out of 92 top threat intel vendors?
That’s exactly what #CrowdSec delivers.
🛡️ Powered by a global community analyzing live attacks, 50% of our malicious IPs are unique. Get visibility others don’t have.
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16% of proven-aggressive IPs CrowdSec blocks are still unknown to other vendors for 15 to 20 days. 👀
🗓️ That’s over two weeks where you’re protected while others remain exposed.
How do we do it?
#CrowdSec leverages a #collaborative network of thousands of contributors worldwide, enabling us to detect and block malicious behavior before it becomes common knowledge.Learn more 👉 https://crowdsec.net/blocklists
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16% of proven-aggressive IPs CrowdSec blocks are still unknown to other vendors for 15 to 20 days. 👀
🗓️ That’s over two weeks where you’re protected while others remain exposed.
How do we do it?
#CrowdSec leverages a #collaborative network of thousands of contributors worldwide, enabling us to detect and block malicious behavior before it becomes common knowledge.Learn more 👉 https://crowdsec.net/blocklists
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Should I Stop Caring and Let IP Address Reputation Sort Them Out? https://nxdomain.no/~peter/should_i_stop_caring_and_let_ip_reputation_sort_them_out.html
How long does data on misbehaving hosts on the Internet stay relevant in an IP Address Reputation context?
Link to poll within (on for a week, 4 days left, please *do* vote).
#security #passwordguessing #antispam #sshgropers #pop3gropers #blacklists #blocklists #bruteforcers #spam #cybercrime #ipreputation
(repost for the CET-ish crowd, some still in holiday mode, and with graphics of sorts added)
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Should I Stop Caring and Let IP Address Reputation Sort Them Out? https://nxdomain.no/~peter/should_i_stop_caring_and_let_ip_reputation_sort_them_out.html
How long does data on misbehaving hosts on the Internet stay relevant in an IP Address Reputation context?
Link to poll within (on for a week, 4 days left, please *do* vote).
#security #passwordguessing #antispam #sshgropers #pop3gropers #blacklists #blocklists #bruteforcers #spam #cybercrime #ipreputation
(repost for the CET-ish crowd, some still in holiday mode, and with graphics of sorts added)
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> [C]ommunity boundary #blocklists [have] incited conflict on the #Fediverse, with many users left cut off from their communities …. Using … #GroundedTheory, we interviewed 9 Fediverse users, including a mix of community boundary blocklist curators, server staff, and regular users, to determine key tensions between community moderation and mutual aid practices
2 May 2025, #openaccess: https://dl.acm.org/doi/10.1145/3710919
Erika Melder, Ada Lerner, Michael Ann DeVito -
> [C]ommunity boundary #blocklists [have] incited conflict on the #Fediverse, with many users left cut off from their communities …. Using … #GroundedTheory, we interviewed 9 Fediverse users, including a mix of community boundary blocklist curators, server staff, and regular users, to determine key tensions between community moderation and mutual aid practices
2 May 2025, #openaccess: https://dl.acm.org/doi/10.1145/3710919
Erika Melder, Ada Lerner, Michael Ann DeVito -
AI Crawlers stealing your content? Time to fight back! 💪
LLMs and AI bots are scraping the web, stealing up your data, hogging bandwidth, and even crashing servers under aggressive loads.
Don’t let them freeload! The CrowdSec AI Crawlers Blocklist stops unwanted harvesting before it hurts your site’s performance or privacy.
Regain control over your digital assets: https://crowdsec.net/blog/protect-against-ai-crawlers
#AIcrawlers #blocklists #threatintelligence #cybersecurity #infosec #AIbots #dataprotection
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Region Östergötland safeguards healthcare for 500,000 residents with the CrowdSec Blocklists. 🛡️
🇸🇪 As Sweden’s leading healthcare provider, Region Östergötland faces relentless cyber threats targeting critical infrastructure, including 3 data centers and 1,500 servers. Traditional measures like geo-blocking and free IP blocklists weren’t enough to keep up with evolving attacks.
Since deploying the CrowdSec Threat Intelligence Blocklist in February 2025, the results have been staggering:
• 215 million malicious IPs blocked in just weeks
• 6 million attacks stopped within the first 2 hours of deployment
• Improved firewall performance by filtering malicious traffic earlyDiscover how CrowdSec secures vital healthcare systems in our latest success story: https://www.crowdsec.net/blog/region-ostergotland-safeguards-healthcare-with-crowdsec
#successsotry #threatintelligence #blocklists #healthcare #infosec