In January 2022, KrebsOnSecurity identified a Russian man named Mikhail Matveev as “Wazawaka,” a cybercriminal who was deeply involved in the formation and operation of multiple ransomware groups. The U.S. government indicted Matveev as a top ransomware purveyor a...

Phishing attacks increased nearly 40 percent in the year ending August 2024, with much of that growth concentrated at a small number of new generic top-level domains (gTLDs) — such as .shop, .top, .xyz — that attract scammers with rock-bottom prices and no meaningful...

Two men have been arrested for allegedly stealing data from and extorting dozens of companies that used the cloud data storage company Snowflake, but a third suspect — a prolific hacker known as Kiberphant0m — remains at large and continues to publicly extort victims....

Federal prosecutors in Los Angeles this week unsealed criminal charges against five men alleged to be members of a hacking group responsible for dozens of cyber intrusions at major U.S. technology companies between 2021 and 2023, including LastPass, MailChimp, Okta,...

The financial technology firm Finastra is investigating the alleged large-scale theft of information from its internal file transfer platform, KrebsOnSecurity has learned. Finastra, which provides software and services to 45 of the world’s top 50 banks, notified...

In December 2023, KrebsOnSecurity revealed the real-life identity of Rescator, the nickname used by a Russian cybercriminal who sold more than 100 million payment cards stolen from Target and Home Depot between 2013 and 2014. Moscow resident Mikhail Shefel, who...

Microsoft today released updates to plug at least 89 security holes in its Windows operating systems and other software. November’s patch batch includes fixes for two zero-day vulnerabilities that are already being exploited by attackers, as well as two other flaws...

The Federal Bureau of Investigation (FBI) is urging police departments and governments worldwide to beef up security around their email systems, citing a recent increase in cybercriminal services that use hacked police email accounts to send unauthorized subpoenas and...

A 26-year-old man in Ontario, Canada has been arrested for allegedly stealing data from and extorting more than 160 companies that used the cloud data service Snowflake. Image: https://www.pomerium.com/blog/the-real-lessons-from-the-snowflake-breach On October 30,...