CISA Admin Leaked AWS GovCloud Keys on Github

Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency CISA maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts said the public archive...

DOGE Worker’s Code Supports NLRB Whistleblower

A whistleblower at the National Labor Relations Board NLRB alleged last week that denizens of Elon Musk's Department of Government Efficiency DOGE siphoned gigabytes of data from the agency's sensitive case files in early March. The whistleblower said accounts created for DOGE at the NLRB...

Stark Industries Solutions: An Iron Hammer in the Cloud

The homepage of Stark Industries Solutions. Two weeks before Russia invaded Ukraine in February 2022, a large, mysterious new Internet hosting firm called Stark Industries Solutions materialized and quickly became the epicenter of massive distributed denial-of-service DDoS attacks on government a...

Arrests in $400M SIM-Swap Tied to Heist at FTX?

Three Americans were charged this week with stealing more than $400 million in a November 2022 SIM-swapping attack. The U.S. government did not name the victim organization, but there is every indication that the money was stolen from the now-defunct cryptocurrency exchange FTX, which had just...

Why You Should Opt Out of Sharing Data With Your Mobile Provider

A new breach involving data from nine million AT&T customers is a fresh reminder that your mobile provider likely collects and shares a great deal of information about where you go and what you do with your mobile device -- unless and until you affirmatively opt out of this data collection. Heres...

New Ransom Payment Schemes Target Executives, Telemedicine

Ransomware groups are constantly devising new methods for infecting victims and convincing them to pay up, but a couple of strategies tested recently seem especially devious. The first centers on targeting healthcare organizations that offer consultations over the Internet and sending them...

Why 8kun Went Offline During the January 6 Hearings

The latest Jan. 6 committee hearing on Tuesday examined the role of conspiracy theory communities like 8kun.top and TheDonald.win in helping to organize and galvanize supporters who responded to former President Trumps invitation to "be wild" in Washington, D.C. on that chaotic day. At the same...

Report: Missouri Governor’s Office Responsible for Teacher Data Leak

Missouri Governor Mike Parson made headlines last year when he vowed to criminally prosecute a journalist for reporting a security flaw in a state website that exposed personal information of more than 100,000 teachers. But Missouri prosecutors now say they will not pursue charges following...

At Request of U.S., Russia Rounds Up 14 REvil Ransomware Affiliates

The Russian government said today it arrested 14 people accused of working for "REvil," a particularly aggressive ransomware group that has extorted hundreds of millions of dollars from victim organizations. The Russian Federal Security Service FSB said the actions were taken in response to a...

Some Basic Rules for Securing Your IoT Stuff

Most readers here have likely heard or read various prognostications about the impending doom from the proliferation of poorly-secured "Internet of Things" or IoT devices. Loosely defined as any gadget or gizmo that connects to the Internet but which most consumers probably wouldn't begin to know...

Hack of Attack-for-Hire Service vDOS Snares New Mexico Man

A New Mexico man is facing federal hacking charges for allegedly using the now defunct attack-for-hire service vDOS to launch damaging digital assaults aimed at knocking his former employer's Web site offline. Prosecutors were able to bring the case in part because vDOS got massively hacked last...

Equifax Breach Response Turns Dumpster Fire

I cannot recall a previous data breach in which the breached company's public outreach and response has been so haphazard and ill-conceived as the one coming right now from big-three credit bureau Equifax, which rather clumsily announced Thursday that an intrusion jeopardized Social security...

Blind Trust in Email Could Cost You Your Home

The process of buying or selling a home can be extremely stressful and complex, but imagine the stress that would boil up if -- at settlement -- your money was wired to scammers in another country instead of to the settlement firm or escrow company. Here's the story about a phishing email that co...

Hackers Used Meta’s AI Support Bot to Seize Instagram Accounts

The Instagram accounts for the Obama White House and the Chief Master Sergeant of the U.S. Space Force were briefly defaced with pro-Iranian images and messages over the weekend, after instructions began circulating on Telegram showing how to trick Meta's "AI support assistant" bot into resetting...

How Phished Data Turns into Apple & Google Wallets

Carding -- the underground business of stealing, selling and swiping stolen payment card data -- has long been the dominion of Russia-based hackers. Happily, the broad deployment of more secure chip-based payment cards in the United States has weakened the carding market. But a flurry of innovati...

How Cryptocurrency Turns to Cash in Russian Banks

A financial firm registered in Canada has emerged as the payment processor for dozens of Russian cryptocurrency exchanges and websites hawking cybercrime services aimed at Russian-speaking customers, new research finds. Meanwhile, an investigation into the Vancouver street address used by this...

Fintech Giant Finastra Investigating Data Breach

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 customers of the security incident...

U.S. Indicts 2 Top Russian Hackers, Sanctions Cryptex

The United States today unveiled sanctions and indictments against the alleged proprietor of Joker 's Stash, a now-defunct cybercrime store that peddled tens of millions of payment cards stolen in some of the largest data breaches of the past decade. The government also indicted and sanctioned a...

The Stark Truth Behind the Resurgence of Russia’s Fin7

The Russia-based cybercrime group dubbed "Fin7," known for phishing and malware attacks that have cost victim organizations an estimated $3 billion in losses since 2013, was declared dead last year by U.S. authorities. But experts say Fin7 has roared back to life in 2024 -- setting up thousands o...

Why Your Wi-Fi Router Doubles as an Apple AirTag

Image: Shutterstock. Apple and the satellite-based broadband service Starlink each recently took steps to address new research into the potential security and privacy implications of how their services geo-locate devices. Researchers from the University of Maryland say they relied on publicly...

BlackCat Ransomware Raises Ante After FBI Disruption

The U.S. Federal Bureau of Investigation FBI disclosed today that it infiltrated the worlds second most prolific ransomware gang, a Russia-based criminal group known as ALPHV and BlackCat. The FBI said it seized the gangs darknet website, and released a decryption tool that hundreds of victim...

Teach a Man to Phish and He’s Set for Life

One frustrating aspect of email phishing is the frequency with which scammers fall back on tried-and-true methods that really have no business working these days. Like attaching a phishing email to a traditional, clean email message, or leveraging link redirects on LinkedIn, or abusing an encodin...

Few Fortune 100 Firms List Security Pros in Their Executive Ranks

Many things have changed since 2018, such as the names of the companies in the Fortune 100 list. But one aspect of that vaunted list that hasnt shifted much since is that very few of these companies list any security professionals within their top executive ranks. The next time you receive a brea...

Top Suspect in 2015 Ashley Madison Hack Committed Suicide in 2014

When the marital infidelity website AshleyMadison.com learned in July 2015 that hackers were threatening to publish data stolen from 37 million users, the companys then-CEO Noel Biderman was quick to point the finger at an unnamed former contractor. But as a new documentary series on Hulu reveals...

Your Phone May Soon Replace Many of Your Passwords

Apple, Google and Microsoft announced this week they will soon support an approach to authentication that avoids passwords altogether, and instead requires users to merely unlock their smartphones to sign in to websites or online services. Experts say the changes should help defeat many types of...

Actions Target Russian Govt. Botnet, Hydra Dark Market

The U.S. Federal Bureau of Investigation FBI says it has disrupted a giant botnet built and operated by a Russian government intelligence unit known for launching destructive cyberattacks against energy infrastructure in the United States and Ukraine. Separately, law enforcement agencies in the...

Conti Ransomware Group Diaries, Part IV: Cryptocrime

Three stories here last week pored over several years’ worth of internal chat records stolen from the Conti ransomware group, the most profitable ransomware gang in operation today. The candid messages revealed how Conti evaded law enforcement and intelligence agencies, what it was like on a...

IRS To Ditch Biometric Requirement for Online Access

The Internal Revenue Service IRS said today it will be transitioning away from requiring biometric data from taxpayers who wish to access their records at the agencys website. The reversal comes as privacy experts and lawmakers have been pushing the IRS and other federal agencies to find less...

Hoax Email Blast Abused Poor Coding in FBI Website

The Federal Bureau of Investigation FBI confirmed today that its fbi.gov domain name and Internet address were used to blast out thousands of fake emails about a cybercrime investigation. According to an interview with the person who claimed responsibility for the hoax, the spam messages were sen...

A Basic Timeline of the Exchange Mass-Hack

Sometimes when a complex story takes us by surprise or knocks us back on our heels, it pays to revisit the events in a somewhat linear fashion. Heres a brief timeline of what we know leading up to last weeks mass-hack, when hundreds of thousands of Microsoft Exchange Server systems got compromise...

Attacks Aimed at Disrupting the Trickbot Botnet

Over the past 10 days, someone has been launching a series of coordinated attacks designed to disrupt Trickbot, an enormous collection of more than two million malware-infected Windows PCs that are constantly being harvested for financial data and are often used as the entry point for deploying...

Ransomware Victims That Pay Up Could Incur Steep Fines from Uncle Sam

Companies victimized by ransomware and firms that facilitate negotiations with ransomware extortionists could face steep fines from the U.S. federal government if the crooks who profit from the attack are already under economic sanctions, the Treasury Department warned today. Image: Shutterstock ...

Secret Service Investigates Breach at U.S. Govt IT Contractor

The U.S. Secret Service is investigating a breach at a Virginia-based government technology contractor that saw access to several of its systems put up for sale in the cybercrime underground, KrebsOnSecurity has learned. The contractor claims the access being auctioned off was to old test systems...

Why Is Your Location Data No Longer Private?

The past month has seen one blockbuster revelation after another about how our mobile phone and broadband providers have been leaking highly sensitive customer information, including real-time location data and customer account details. In the wake of these consumer privacy debacles, many are lef...

U.S. Arrests 13, Charges 36 in ‘Infraud’ Cybercrime Forum Bust

The U.S. Justice Department announced charges on Wednesday against three dozen individuals thought to be key members of 'Infraud," a long-running cybercrime forum that federal prosecutors say cost consumers more than a half billion dollars. In conjunction with the forum takedown, 13 alleged Infra...

Microsoft Patches a Record 570 Security Flaws

Microsoft Corp. today released software updates to plug at least 570 security holes in its Windows operating systems and other software, almost triple the number of vulnerabilities the software giant fixed in its record-smashing Patch Tuesday release last month. Microsoft attributed the burgeonin...

Scattered Spider Hackers Plead Guilty on Day 1 of Trial

Two men pleaded guilty in the United Kingdom this week to criminal charges stemming from an August 2024 cyberattack that crippled Transport for London , the entity responsible for the public transport network in the Greater London area. The duo were key members of a prolific cybercrime group know...

Microsoft Patch Tuesday, September 2025 Edition

Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited vulnerabilities in this month's bundle from Redmond, which nevertheless includes patches for 13 flaws that earned...

Microsoft Patch Tuesday, July 2025 Edition

Microsoft today released updates to fix at least 137 security vulnerabilities in its Windows operating systems and supported software. None of the weaknesses addressed this month are known to be actively exploited, but 14 of the flaws earned Microsoft's most-dire "critical" rating, meaning they...

Inside a Dark Adtech Empire Fed by Fake CAPTCHAs

Late last year, security researchers made a startling discovery: Kremlin-backed disinformation campaigns were bypassing moderation on social media platforms by leveraging the same malicious advertising technology that powers a sprawling ecosystem of online hucksters and website hackers. A new...

Feds Link $150M Cyberheist to 2022 LastPass Hacks

In September 2023, KrebsOnSecurity published findings from security researchers who concluded that a series of six-figure cyberheists across dozens of victims resulted from thieves cracking master passwords stolen from the password manager service LastPass in 2022. In a court filing this week, U....

An Interview With the Target & Home Depot Hacker

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 confirmed using the Rescator...

Canadian Man Arrested in Snowflake Data Extortions

A 25-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, Canadian authorities arrested...

U.S. Charges Russian Man as Boss of LockBit Ransomware Group

The United States joined the United Kingdom and Australia today in sanctioning 31-year-old Russian national Dmitry Yuryevich Khoroshev as the alleged leader of the infamous ransomware group LockBit. The U.S. Department of Justice also indicted Khoroshev and charged him with using Lockbit to attac...

A Closer Look at the Snatch Data Ransom Group

Earlier this week, KrebsOnSecurity revealed that the darknet website for the Snatch ransomware group was leaking data about its users and the crime gangs internal operations. Today, well take a closer look at the history of Snatch, its alleged founder, and their claims that everyone has confused...

Service Rents Email Addresses for Account Signups

One of the most expensive aspects of any cybercriminal operation is the time and effort it takes to constantly create large numbers of new throwaway email accounts. Now a new service offers to help dramatically cut costs associated with large-scale spam and account creation campaigns, by paying...

Phishing Domains Tanked After Meta Sued Freenom

The number of phishing websites tied to domain name registrar Freenom dropped precipitously in the months surrounding a recent lawsuit from social networking giant Meta, which alleged the free domain name provider has a long history of ignoring abuse complaints about phishing websites while...

Who’s Behind the NetWire Remote Access Trojan?

A Croatian national has been arrested for allegedly operating NetWire, a Remote Access Trojan RAT marketed on cybercrime forums since 2012 as a stealthy way to spy on infected systems and siphon passwords. The arrest coincided with a seizure of the NetWire sales website by the U.S. Federal Bureau...

Hacker Charged With Extorting Online Psychotherapy Service

A 25-year-old Finnish man has been charged with extorting a once popular and now-bankrupt online psychotherapy company and its patients. Finnish authorities rarely name suspects in an investigation, but they were willing to make an exception for Julius "Zeekill" Kivimaki, a notorious hacker who -...

KrebsOnSecurity in New Netflix Series on Cybercrime

Netflix has a new documentary series airing next week -- "Web of Make Believe: Death, Lies & the Internet" -- in which Yours Truly apparently has a decent amount of screen time. The debut episode explores the far-too-common harassment tactic of "swatting" -- wherein fake bomb threats or hostage...