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The Register
Missing DMARC or wobbly SPF means your mail may be treated as suspicious
Dark Reading
The latest activity from the remote access Trojan (RAT) shows why organizations should monitor the behavior of applications rather than blindly trusting them, experts say.
Dark Reading
Two separate attacks demonstrate how threat actors are finding new ways to compromise organizations by using the popular social engineering tactic.
Bleeping Computer
Microsoft is investigating an issue causing the Defender for Office 365 security software to mistakenly block access to legitimate Google search links. [...]
The Hacker News
Cybersecurity researchers have traced the continued evolution of the Cavern (aka Cav3rn) command-and-control (C2) framework used by Iranian nation-state hackers in attacks targeting entities in Israel. Russian cybersecurity company Kaspersky said its ongoing monitoring of the threat activity cluster since December 2025 has led to the discovery of previously unreported components that expand the
The Hacker News
Cybersecurity researchers have discovered a new version of the Kimwolf/AISURU Android and Internet of Things (IoT) botnet that comes with significant improvements to improve its operational resilience and conduct distributed denial-of-service (DDoS) attacks. The new version, tracked as Kimwolf v7, was discovered by Palo Alto Networks Unit 42 in February 2026. "Kimwolf v7 adds an HTTP/2-based
Bleeping Computer
A threat actor has published hundreds of fake GitHub repositories impersonating legitimate software and security projects to distribute infostealer malware. [...]
Bleeping Computer
Microsoft is investigating an ongoing Exchange Online issue that mistakenly flags legitimate emails as phishing and quarantines them. [...]
Bleeping Computer
Hackers are using a novel technique that combines legitimate office.com links with Active Directory Federation Services (ADFS) to redirect users to a phishing page that steals Microsoft 365 logins. [...]
The Register
Government and police employee credentials sold at bargain-basement prices on underground forums Criminals are selling access to FBI and other law enforcement and government email accounts to other criminals via dark web marketplaces for as little as $40.…