Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365’s authentication process even on accounts secured with multi-factor authentication (MFA). “The attackers then used the stolen credentials and session cookies to access affected users’ mailboxes and perform follow-on business email compromise (BEC) campaigns against other…

Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365’s authentication process even on accounts secured with multi-factor authentication (MFA). “The attackers then used the stolen credentials and session cookies to access affected users’ mailboxes and perform follow-on business email compromise (BEC) campaigns against other…

Microsoft Warns of Large-Scale AiTM Phishing Attacks Against Over 10,000 Organizations

Microsoft on Tuesday disclosed that a large-scale phishing campaign targeted over 10,000 organizations since September 2021 by hijacking Office 365’s authentication process even on accounts secured with multi-factor authentication (MFA). “The attackers then used the stolen credentials and session cookies to access affected users’ mailboxes and perform follow-on business email compromise (BEC) campaigns against other…

New ‘Retbleed’ Speculative Execution Attack Affects AMD and Intel CPUs

Security researchers have uncovered yet another vulnerability affecting numerous older AMD and Intel microprocessors that could bypass current defenses and result in Spectre-based speculative-execution attacks. Dubbed Retbleed by ETH Zurich researchers Johannes Wikner and Kaveh Razavi, the issues are tracked as CVE-2022-29900 (AMD) and CVE-2022-29901 (Intel), with the chipmakers releasing software mitigations as part of…

Researchers Uncover New Variants of the ChromeLoader Browser Hijacking Malware

Cybersecurity researchers have uncovered new variants of the ChromeLoader information-stealing malware, highlighting its evolving feature set in a short span of time. Primarily used for hijacking victims’ browser searches and presenting advertisements, ChromeLoader came to light in January 2022 and has been distributed in the form of ISO or DMG file downloads advertised via QR…