Author Archives: BrianKrebs

Who Runs the Ransomware Group Qilin?

November 11, 2026

The cybercrime group Qilin has emerged as the world’s most active ransomware affiliate program, claiming at least 365 victim organizations in the past three months alone. But even top Russian hackers make operational security mistakes, and the administrator of Qilin has made a few key missteps over the last decade that all point to a 36-year-old man living in St. Petersburg, Russia.

Microsoft Fixes Nearly 1,100 Security Vulnerabilities

November 10, 2026

Microsoft did another four-digit patch drop today, releasing updates to fix almost 1,100 security vulnerabilities in its Windows operating systems and supported software. This month’s Patch Tuesday addresses 63 critical flaws — including a zero-day in Microsoft Outlook — and comes amid important security updates from other software makers, including Adobe, Apple, Google and Mozilla.

Want to Rent an Internet Address at the White House?

November 4, 2026

Several staffers at the White House are using computers or mobile devices equipped with residential proxy services that render their internet address available for others to rent, security experts warned today. One of the proxy services is a Russian company whose founder’s web hosting business was ground zero for cyberattacks against election systems in Arizona and Illinois in 2016.

Tech Firms Dismantle Botnet That Turned 1.3M TV Boxes Into Proxies

November 2, 2026

Google said today it worked with industry partners to dismantle a botnet made up of more than 1.3 million Android TV set-top boxes that ship with malicious software which secretly rents the user’s Internet connection out to strangers and conducts advertising fraud. Experts involved in the takedown say the action is likely to sever the botnet’s access to more than 10 million additional compromised systems, including other Internet of Things (IoT) products such as Android-based healthcare devices and karaoke machines.

Widespread PHP Flaw May Cause Many Site Outages Today

October 21, 2026

Expect to see quite a few websites serving “404” or “Page Not Found” errors today: Nearly 70 percent of websites need to update their core software to fix a pair of vulnerabilities that allow an attacker to seize full control over affected servers. Experts say there are working exploits for the flaws, and that these critical bugs are already being exploited in the wild.

Feds Suspect Ransom Negotiator Ran ShinyHunters Extortion Site

October 19, 2026

U.S. federal investigators pursuing the ShinyHunters hacking group that recently stole highly sensitive data from the FBI have identified executives at two different ransomware negotiation firms who maintained unusually close relations with the extortion group, KrebsOnSecurity has learned. Sources close to the investigation say one of the executives in the United States even helped ShinyHunters operate a website that pressured victims into paying a ransom.

U.K. Sanctions Cryptomus for RU Money Laundering

October 14, 2026

The United Kingdom has issued economic sanctions against Cryptomus, a chameleonic cryptocurrency platform that experts say serves as a major conduit for payments related to ransomware, narcotics, darknet markets, fraud and cybercrime services that are helping Russia circumvent existing financial restrictions.

Microsoft Patches More Than 1,400 Security Flaws

October 13, 2026

Microsoft today issued updates to fix more than 1,400 security vulnerabilities in its Windows operating systems and other software. Today’s epic patch batch dwarfs September’s record of nearly 1,000 fixes, which was already about ten times the normal monthly patch load from Redmond.

FBI Arrests Executive at Ransomware Negotiation Firm

October 9, 2026

Agents with the Federal Bureau of Investigation (FBI) on Thursday arrested the co-founder of a Canadian cybersecurity firm in connection with an investigation into the ShinyHunters hacking group that recently relieved the FBI of sensitive data on thousands of agents, multiple sources tell KrebsOnSecurity.

ShinyHunters Extorted Boeing Spin-off Prior to Arrests

October 7, 2026

A teenager from Amman, Jordan suspected of leading the prolific data theft and extortion group ShinyHunters has been detained and is reportedly cooperating with the FBI to identify other members of the hacking gang. KrebsOnSecurity has learned that the suspect, who uses the hacker handle “Rey,” was detained as ShinyHunters was in the process of extorting a business unit recently divested by the global aerospace company Boeing, which manufactures the fleet of planes used by the employer of Rey’s father — Royal Jordanian Airlines.