FBI
FBI disrupts proxy network enabling Chinese espionage operations
The FBI has disrupted infrastructure associated with a technical “quartermaster” that provided reconnaissance, proxy management, and operational routing capabilities for Chinese cyber espionage activities. According to the Department of Justice, a threat actor known as QTFY/QT/QTCYBER utilized two “hacking platforms known as ‘QScan’ and ‘QTRouter,’” in attacks targeting U.S. critical infrastructure and other sensitive networks. Among QTFY’s […]
CISA: Medusa ransomware hit over 500 critical infrastructure orgs
The Cybersecurity and Infrastructure Security Agency (CISA) said Tuesday that the Medusa ransomware gang has breached more than 500 critical infrastructure organizations in the United States since June 2021. This was revealed in a joint advisory in coordination with the Department of Health and Human Services (HHS) and the Federal Bureau of Investigation (FBI). “As of April […]
FBI: Hackers target online accounts to steal nude photos
The FBI warns that cybercriminals are targeting adults’ and children’s social media and other online accounts to steal sexually explicit images or videos. As the law enforcement agency explained in a public service announcement published this week, the attackers may use the stolen content to blackmail the victims or try to sell it on criminal […]
US and South Korea warn of Gunra ransomware targeting govt agencies
U.S. federal agencies and South Korea’s National Policy Agency warned government and critical infrastructure organizations worldwide to secure their systems against Gunra ransomware attacks. In a Monday joint advisory, they said the ransomware group uses a malware variant based on the Conti ransomware source code leaked in February 2022, in attacks targeting a wide range of industry sectors, from […]
FBI: Russian hackers now target Signal backup recovery keys
The FBI and CISA are warning that a phishing campaign targeting Signal users tied to Russian intelligence services has evolved to steal Signal Backup Recovery Keys, allowing attackers to access victims’ historical messages. The updated public service announcement is an update to a March 2026 advisory that warned the threat actors were targeting users of commercial messaging […]
FBI: Fraudsters use couriers to steal money in crypto scams
The U.S. Federal Bureau of Investigation (FBI) warned that criminals are using couriers to collect money from victims of cryptocurrency investment scams, also known as pig butchering or romance baiting. Such scams usually start with the fraudsters reaching out to their targets via social media, dating sites, and messaging apps, building trust, and then luring victims into fake […]
FBI warns of in-person data theft attacks from extortion gang
The FBI warned on Tuesday that the Silent Ransom Group (SRG) extortion gang is now targeting U.S.-based law firms in in-person data theft attacks. “As of Spring 2026, SRG actors use a social engineering scheme to pose as an employee from the victim’s IT department. SRG actors either directly call or send phishing emails to […]
FBI warns of Kali365 phishing service targeting Microsoft 365 accounts
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). According to the FBI PSA, Kali365 first emerged in April 2026 and is distributed via Telegram channels for cybercriminals seeking an easier way […]
FBI: Americans lost over $388 million to scams using crypto ATMs in 2025
The FBI says Americans have lost over $388 million last year to scams using cryptocurrency kiosks, also known as crypto ATMs or Bitcoin ATMs. Cryptocurrency kiosks are physical, standalone electronic terminals (which may or may not require identity verification to prevent money laundering) that resemble bank ATMs and allow users to buy or sell crypto […]
FBI links cybercriminals to sharp surge in cargo theft attacks
The U.S. Federal Bureau of Investigation (FBI) warned the transportation and logistics industry of a sharp rise in cyber-enabled cargo theft, with estimated losses in the United States and Canada reaching nearly $725 million in 2025. This represents a 60% surge in losses compared to the previous year, fueled by criminals increasingly using hacking and […]