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Microsoft has observed a surge in attacks using the ACR Stealer malware to steal browser-stored passwords, authentication tokens, and sensitive documents from its enterprise customers. [...]
The FBI is warning about the Kali365 phishing-as-a-service platform (PhaaS) that is used to hijack Microsoft 365 accounts by abusing OAuth device code authentication to steal session tokens and bypass multi-factor authentication (MFA). [...]
200 orgs and 5,000 devices compromised so far in Vlad's latest intelligence grab, Microsoft reckons The UK's National Cyber Security Centre (NCSC) has issued a fresh warning about Russia's ongoing targeting of routers to steal passwords and other secrets.…
Microsoft on Monday warned of phishing campaigns that employ phishing emails and OAuth URL redirection mechanisms to bypass conventional phishing defenses implemented in email and browsers
Microsoft has warned that information-stealing attacks are "rapidly expanding" beyond Windows to target Apple macOS environments by leveraging cross-platform languages like Python and abusing trusted platforms for distribution at scale
Microsoft Says Hackers Pivoting to Identity CompromiseHackers are as likely to log in as break in, warns Microsoft in an annual assessment of cyberthreats. During the first half of 2025, identity-based attacks rose by 32% due to credentials stolen by infostealers or password and email combinations plucked from bulk data breaches.
A threat actor known as Storm-2657 has been observed hijacking employee accounts with the end goal of diverting salary payments to attacker-controlled accounts
The recent mass-theft of authentication tokens from Salesloft, whose AI chatbot is used by a broad swath of corporate America to convert customer interaction into Salesforce leads, has left many companies racing to invalidate the stolen credentials before hackers can exploit them. Now Google warns the breach goes far beyond access to Salesforce data, noting the hackers responsible also stole valid authentication tokens for hundreds of online services that customers can integrate with Salesloft, including Slack, Google Workspace, Amazon S3, Microsoft Azure, and OpenAI.
Microsoft warns that a threat actor tracked as Storm-0501 has evolved its operations, shifting away from encrypting devices with ransomware to focusing on cloud-based encryption, data theft, and extortion. [...]
Fancy Bear can't keep its claws out of Outlook inboxes The UK government is warning that Russia's APT28 (also known as Fancy Bear or Forest Blizzard) has been deploying previously unknown malware to harvest Microsoft email credentials and steal access to compromised accounts.…
Semperis Warns of Flaw in Windows Server 2025 Delegated Managed Service AccountsA critical cryptographic flaw in Windows Server 2025's delegated Managed Service Accounts, or dMSAs, allows attackers to generate passwords for every managed service account across an Active Directory forest and create a backdoor, Semperis researchers found.
Microsoft warns thousands of North Korean workers have infiltrated tech, manufacturing, and transportation sectors to steal money and data.
Also, Stolen Cookies for Sale, LexisNexis Breach and an FBI WarningThis week, Alcasec back in a Spanish jail, billions of stolen cookies and Chinese hackers used Google Calendar. LexisNexis and Adidas had breaches, a vishing warning from the FBI. ClickFix scammers used fake Google Meet pages, Victoria's Secret went offline. Microsoft will update all your software.
Microsoft is warning of several phishing campaigns that are leveraging tax-related themes to deploy malware and steal credentials
The sneaky malware packs capabilities for system reconnaissance as well as credential and cryptocurrency theft.
Microsoft is calling attention to a novel remote access trojan (RAT) named StilachiRAT that it said employs advanced techniques to sidestep detection and persist within target environments with an ultimate aim to steal sensitive data
Microsoft has shed light on an ongoing phishing campaign that targeted the hospitality sector by impersonating online travel agency Booking.com using an increasingly popular social engineering technique called ClickFix to deliver credential-stealing malware
Phishers check in, your credentials check out, Microsoft warns An ongoing phishing campaign disguised as a Booking.com email casts keystroke and credential-stealing malware into hospitality employees' inboxes for financial fraud and theft, according to Microsoft Threat Intelligence.…
Microsoft has disclosed details of a large-scale malvertising campaign that's estimated to have impacted over one million devices globally as part of what it said is an opportunistic attack designed to steal sensitive information
Recent campaign targeted 20,000 folk across UK and Europe with this tactic, Unit 42 warns Unknown criminals went on a phishing expedition that targeted about 20,000 users across the automotive, chemical and industrial compound manufacturing sectors in Europe, and tried to steal account credentials and then hijack the victims' Microsoft Azure cloud infrastructure.…