Thinking of Hiring or Running a Booter Service? Think Again.

Most people who operate DDoS-for-hire businesses attempt to hide their true identities and location. Proprietors of these so-called “booter” or “stresser” services — designed to knock websites and users offline — have long operated in a legally murky area of cybercrime law. But until recently, their...

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Microsoft Patch Tuesday, January 2023 Edition

Microsoft today released updates to fix nearly 100 security flaws in its Windows operating systems and other software. Highlights from the first Patch Tuesday of 2023 include a zero-day vulnerability in Windows, printer software flaws reported by the U.S. National Security Agency, and a critical Mic...

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Identity Thieves Bypassed Experian Security to View Credit Reports

Identity thieves have been exploiting a glaring security weakness in the website of Experian, one of the big three consumer credit reporting bureaus. Normally, Experian requires that those seeking a copy of their credit report successfully answer several multiple choice questions about their financi...

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Happy 12th Birthday, KrebsOnSecurity!

KrebsOnSecurity turns 12 years old today. That’s a crazy long time for an independent media outlet these days, but then again I’m bound to keep doing this as long as they keep letting me! Thanks to your readership and support, I was able to spend more time in 2022 on some deep, meaty investigative s...

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Happy 13th Birthday, KrebsOnSecurity!

KrebsOnSecurity turns 13 years old today. That’s a crazy long time for an independent media outlet these days, but then again I’m bound to keep doing this as long as they keep letting me. Heck, I’ve been doing this so long I briefly forgot which birthday this was! Thanks to your readership and suppo...

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The Equifax Breach Settlement Offer is Real, For Now

Millions of people likely just received an email or snail mail notice saying they’re eligible to claim a class action payment in connection with the 2017 megabreach at consumer credit bureau Equifax. Given the high volume of reader inquiries about this, it seemed worth pointing out that while this p...

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Hacked Ring Cams Used to Record Swatting Victims

Photo: BrandonKleinPhoto / Shutterstock.com Two U.S. men have been charged with hacking into the Ring home security cameras of a dozen random people and then “swatting” them — falsely reporting a violent incident at the target’s address to trick local police into responding with force. Prosecutors s...

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Six Charged in Mass Takedown of DDoS-for-Hire Sites

The U.S. Department of Justice (DOJ) today seized four-dozen domains that sold “booter” or “stresser” services — businesses that make it easy and cheap for even non-technical users to launch powerful Distributed Denial of Service (DDoS) attacks designed knock targets offline. The DOJ also charged si...

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Microsoft Patch Tuesday, December 2022 Edition

Microsoft has released its final monthly batch of security updates for 2022, fixing more than four dozen security holes in its various Windows operating systems and related software. The most pressing patches include a zero-day in a Windows feature that tries to flag malicious files from the Web, a ...

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FBI’s Vetted Info Sharing Network ‘InfraGard’ Hacked

InfraGard, a program run by the U.S. Federal Bureau of Investigation (FBI) to build cyber and physical threat information sharing partnerships with the private sector, this week saw its database of contact information on more than 80,000 members go up for sale on an English-language cybercrime forum...

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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 booby-tra...

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Judge Orders U.S. Lawyer in Russian Botnet Case to Pay Google

In December 2021, Google filed a civil lawsuit against two Russian men thought to be responsible for operating Glupteba, one of the Internet’s largest and oldest botnets. The defendants, who initially pursued a strategy of counter suing Google for tortious interference in their sprawling cybercrime ...

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ConnectWise Quietly Patches Flaw That Helps Phishers

ConnectWise, a self-hosted, remote desktop software application that is widely used by Managed Service Providers (MSPs), is warning about an unusually sophisticated phishing attack that can let attackers take remote control over user systems when recipients click the included link. The warning comes...

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U.S. Govt. Apps Bundled Russian Code With Ties to Mobile Malware Developer

A recent scoop by Reuters revealed that mobile apps for the U.S. Army and the Centers for Disease Control and Prevention (CDC) were integrating software that sends visitor data to a Russian company called Pushwoosh, which claims to be based in the United States. But that story omitted an important h...

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Researchers Quietly Cracked Zeppelin Ransomware Keys

Peter is an IT manager for a technology manufacturer that got hit with a Russian ransomware strain called “Zeppelin” in May 2020. He’d been on the job less than six months, and because of the way his predecessor architected things, the company’s data backups also were encrypted by Zeppelin. After tw...

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Disneyland Malware Team: It’s a Puny World After All

A financial cybercrime group calling itself the Disneyland Team has been making liberal use of visually confusing phishing domains that spoof popular bank brands using Punycode, an Internet standard that allows web browsers to render domain names with non-Latin alphabets like Cyrillic. The Disneylan...

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Top Zeus Botnet Suspect “Tank” Arrested in Geneva

Vyacheslav “Tank” Penchukov, the accused 40-year-old Ukrainian leader of a prolific cybercriminal group that stole tens of millions of dollars from small to mid-sized businesses in the United States and Europe, has been arrested in Switzerland, according to multiple sources. Wanted Ukrainian cybercr...

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Lawsuit Seeks Food Benefits Stolen By Skimmers

A nonprofit organization is suing the state of Massachusetts on behalf of thousands of low-income families who were collectively robbed of more than a $1 million in food assistance benefits by card skimming devices secretly installed at cash machines and grocery store checkout lanes across the state...

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Patch Tuesday, November 2022 Election Edition

Let’s face it: Having “2022 election” in the headline above is probably the only reason anyone might read this story today. Still, while most of us here in the United States are anxiously awaiting the results of how well we’ve patched our Democracy, it seems fitting that Microsoft Corp. today releas...

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LinkedIn Adds Verified Emails, Profile Creation Dates

Responding to a recent surge in AI-generated bot accounts, LinkedIn is rolling out new features that it hopes will help users make more informed decisions about with whom they choose to connect. Many LinkedIn profiles now display a creation date, and the company is expanding its domain validation of...

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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 — at...

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Accused ‘Raccoon’ Malware Developer Fled Ukraine After Russian Invasion

A 26-year-old Ukrainian man is awaiting extradition from The Netherlands to the United States on charges that he acted as a core developer for Raccoon, a popular “malware-as-a-service” offering that helped paying customers steal passwords and financial data from millions of cybercrime victims. Krebs...

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Battle with Bots Prompts Mass Purge of Amazon, Apple Employee Accounts on LinkedIn

On October 10, 2022, there were 576,562 LinkedIn accounts that listed their current employer as Apple Inc. The next day, half of those profiles no longer existed. A similarly dramatic drop in the number of LinkedIn profiles claiming employment at Amazon comes as LinkedIn is struggling to combat a si...

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How Card Skimming Disproportionally Affects Those Most In Need

When people banking in the United States lose money because their payment card got skimmed at an ATM, gas pump or grocery store checkout terminal, they may face hassles or delays in recovering any lost funds, but they are almost always made whole by their financial institution. Yet, one class of Ame...

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Anti-Money Laundering Service AMLBot Cleans House

AMLBot, a service that helps businesses avoid transacting with cryptocurrency wallets that have been sanctioned for cybercrime activity, said an investigation published by KrebsOnSecurity last year helped it shut down three dark web services that secretly resold its technology to help cybercrooks av...

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Microsoft Patch Tuesday, October 2022 Edition

Microsoft today released updates to fix at least 85 security holes in its Windows operating systems and related software, including a new zero-day vulnerability in all supported versions of Windows that is being actively exploited. However, noticeably absent from this month’s Patch Tuesday are any u...

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Report: Big U.S. Banks Are Stiffing Account Takeover Victims

When U.S. consumers have their online bank accounts hijacked and plundered by hackers, U.S. financial institutions are legally obligated to reverse any unauthorized transactions as long as the victim reports the fraud in a timely manner. But new data released this week suggests that for some of the ...

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Glut of Fake LinkedIn Profiles Pits HR Against the Bots

A recent proliferation of phony executive profiles on LinkedIn is creating something of an identity crisis for the business networking site, and for companies that rely on it to hire and screen prospective employees. The fabricated LinkedIn identities — which pair AI-generated profile photos with te...

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Microsoft: Two New 0-Day Flaws in Exchange Server

Microsoft Corp. is investigating reports that attackers are exploiting two previously unknown vulnerabilities in Exchange Server, a technology many organizations rely on to send and receive email. Microsoft says it is expediting work on software patches to plug the security holes. In the meantime, i...

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Fake CISO Profiles on LinkedIn Target Fortune 500s

Someone has recently created a large number of fake LinkedIn profiles for Chief Information Security Officer (CISO) roles at some of the world’s largest corporations. It’s not clear who’s behind this network of fake CISOs or what their intentions may be. But the fabricated LinkedIn identities are co...

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