#exchangeonline — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #exchangeonline, aggregated by home.social.
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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Ein weiterer Schritt in Richtung #DigitalSovereignty : #Outlook wird dann irgendwann nicht mehr zwingend notwendig sein
#Thunderbird stellt #ExchangeOnline auf #MicrosoftGraph um | iX Magazin https://www.heise.de/news/Thunderbird-stellt-Exchange-Online-auf-Microsoft-Graph-um-11439383.html #M365 #Microsoft365 #MS365 #MozillaThunderbird #OpenSource #MicrosoftOutlook
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CVE-2026-56191: CRITICAL improper authentication in Microsoft Exchange Online (CVSS 10). Remote, unauthenticated attackers can tamper with systems. Official fix available — patch ASAP. Details: https://radar.offseq.com/threat/cve-2026-56191-cwe-287-improper-authentication-in-microsoft-microsoft-exchange-online-2fb5560625ca8222 #OffSeq #CVE202656191 #ExchangeOnline #Vuln
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https://winbuzzer.com/2026/05/21/microsoft-alert-emails-abused-to-deliver-scam-links-xcxwbn/
Scammers are abusing Microsoft's trusted account-notification email channel to send spam or phishing links that can look like legitimate Microsoft alerts.
#MicrosoftAccount #Microsoft #Cybersecurity #Cybercrime #PhishingAttacks #MicrosoftSecurity #ExchangeOnline
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https://winbuzzer.com/2026/02/09/microsoft-exchange-online-flags-legitimate-emails-phishing-xcxwbn/
Microsoft Exchange Online Falsely Flags Legitimate Emails as Phishing
#ExchangeOnline #Microsoft #Cybersecurity #Security #MicrosoftExchange #PhishingAttacks #BigTech #Email #MicrosoftSecurity #Cloud #Phishing #MicrosoftCloud