Microsoft 365

Pierluigi Paganini September 08, 2026
IT Help Desk Impersonation Lets Hackers Bypass MFA

Attackers bypass endpoint security by posing as IT staff, stealing Microsoft 365 sessions, draining SaaS data and demanding extortion. Forget installing malware because today’s extortionists just pick up the phone instead of writing code. A widespread threat cluster tracked as PREY-0058 bypasses endpoint security entirely by targeting Microsoft 365 and SaaS environments through pure social […]

Pierluigi Paganini August 19, 2022
Russia-linked Cozy Bear uses evasive techniques to target Microsoft 365 users

Russia-linked APT group Cozy Bear continues to target Microsoft 365 accounts in NATO countries for cyberespionage purposes. Mandiant researchers reported that the Russia-linked Cozy Bear cyberespionage group (aka APT29, CozyDuke, and Nobelium), has targeted Microsoft 365 accounts in espionage campaigns. The experts pointed out that APT29 devised new advanced tactics, techniques, and procedures to evade detection. […]

Pierluigi Paganini December 29, 2020
CISA releases a PowerShell-based tool to detect malicious activity in Azure, Microsoft 365

Cybersecurity and Infrastructure Security Agency (CISA) released a tool for detecting potentially malicious activities in Azure/Microsoft 365 environments. The Cybersecurity and Infrastructure Security Agency (CISA)’s Cloud Forensics team has released a PowerShell-based tool, dubbed Sparrow, that can that helps administrators to detect anomalies and potentially malicious activities in Azure/Microsoft 365 environments. The tool was developed to […]