One of the most-read advice columns on this site is a 2018 piece called "Plant Your Flag, Mark Your Territory," which tried to impress upon readers the importance of creating accounts at websites like those at the Social Security Administration,...

We've seen an ugly trend recently of tech news stories and cybersecurity firms trumpeting claims of ransomware attacks on companies large and small, apparently based on little more than the say-so of the ransomware gangs themselves. Such coverage is potentially...

The COVID-19 pandemic has made it harder for banks to trace the source of payment card data stolen from smaller, hacked online merchants. On the plus side, months of quarantine have massively decreased demand for account information that thieves buy...

A well-connected Russian hacker once described as “an asset of supreme importance” to Moscow was sentenced on Friday to nine years in a U.S. prison after pleading guilty to running a site that sold stolen payment card data, and to...

The U.S. Justice Department today criminally charged a Canadian and a Northern Ireland man for allegedly conspiring to build multiple botnets that enslaved hundreds of thousands of routers and other Internet of Things (IoT) devices for use in large-scale distributed...

Hundreds of thousands of potentially sensitive files from police departments across the United States were leaked online last week. The collection, dubbed "BlueLeaks" and made searchable via a new website by the same name, stems from a security breach at...

Hundreds of popular websites now offer some form of multi-factor authentication (MFA), which can help users safeguard access to accounts when their password is breached or stolen. But people who don't take advantage of these added safeguards may find it...

An information technology specialist at the Federal Emergency Management Agency (FEMA) was arrested this week on suspicion of hacking into the human resource databases of University of Pittsburgh Medical Center (UPMC) in 2014, stealing personal data on more than 65,000...

"We must care as much about securing our systems as we care about running them if we are to make the necessary revolutionary change." -CIA's Wikileaks Task Force. So ends a key section of a report the U.S. Central Intelligence...

For the past year, a site called Privnotes.com has been impersonating Privnote.com, a legitimate, free service that offers private, encrypted messages which self-destruct automatically after they are read. Until recently, I couldn't quite work out what Privnotes was up to,...

Microsoft today released software patches to plug at least 129 security holes in its Windows operating systems and supported software, by some accounts a record number of fixes in one go for the software giant. None of the bugs addressed...

In late May, KrebsOnSecurity alerted numerous officials in Florence, Ala. that their information technology systems had been infiltrated by hackers who specialize in deploying ransomware. Nevertheless, on Friday, June 5, the intruders sprang their attack, deploying ransomware and demanding nearly...

The co-owners of vDOS, a now-defunct service that for four years helped paying customers launch more than two million distributed denial-of-service (DDoS) attacks that knocked countless Internet users and websites offline, each have been sentenced to six months of community...

An exhaustive inquiry published today by a consortium of investigative journalists says a three-part series KrebsOnSecurity published in 2015 on a Romanian ATM skimming gang operating in Mexico's top tourist destinations disrupted their highly profitable business, which raked in an...

The criminal group behind the REvil ransomware enterprise has begun auctioning off sensitive data stolen from companies hit by its malicious software. The move marks an escalation in tactics aimed at coercing victims to pay up -- and publicly shaming...

When law enforcement agencies tout their latest cybercriminal arrest, the defendant is often cast as a bravado outlaw engaged in sophisticated, lucrative, even exciting activity. But new research suggests that as cybercrime has become dominated by pay-for-service offerings, the vast...

The United Kingdom's anti-cybercrime agency is running online ads aimed at young people who search the Web for services that enable computer crimes, specifically trojan horse programs and DDoS-for-hire services. The ad campaign follows a similar initiative launched in late...

A group of Romanians operating an ATM company in Mexico and suspected of bribing technicians to install sophisticated Bluetooth-based skimmers in cash machines throughout several top Mexican tourist destinations have enjoyed legal protection from a top anti-corruption official in the...

When a reliable method of scamming money out of people, companies or governments becomes widely known, underground forums and chat networks tend to light up with activity as more fraudsters pile on to claim their share. And that's exactly what...

In January 2019, dozens of media outlets raised the alarm about a new “megabreach” involving the release of some 773 million stolen usernames and passwords that was breathlessly labeled “the largest collection of stolen data in history.” A subsequent review...

Almost daily now there is news about flaws in commercial software that lead to computers getting hacked and seeded with malware. But the reality is most malicious software also has its share of security holes that open the door for...

A well-organized Nigerian crime ring is exploiting the COVID-19 crisis by committing large-scale fraud against multiple state unemployment insurance programs, with potential losses in the hundreds of millions of dollars, according to a new alert issued by the U.S. Secret...

Microsoft today issued software updates to plug at least 111 security holes in Windows and Windows-based programs. None of the vulnerabilities were labeled as being publicly exploited or detailed prior to today, but as always if you're running Windows on...

Diebold Nixdorf, a major provider of automatic teller machines (ATMs) and payment technology to banks and retailers, recently suffered a ransomware attack that disrupted some operations. The company says the hackers never touched its ATMs or customer networks, and that...

Millions of Americans now filing for unemployment will receive benefits via a prepaid card issued by U.S. Bank, a Minnesota-based financial institution that handles unemployment payments for more than a dozen U.S. states. Some of these unemployment applications will trigger...

A new email scam is making the rounds, warning recipients that someone using their Internet address has been caught viewing child pornography. The message claims to have been sent from Microsoft Support, and says the recipient's Windows license will be...

Fresenius, Europe's largest private hospital operator and a major provider of dialysis products and services that are in such high demand thanks to the COVID-19 pandemic, has been hit in a ransomware cyber attack on its technology systems. The company...

In many ways, the COVID-19 pandemic has been a boon to cybercriminals: With unprecedented numbers of people working from home and anxious for news about the virus outbreak, it's hard to imagine a more target-rich environment for phishers, scammers and...

You may have heard that today's phone fraudsters like to use use caller ID spoofing services to make their scam calls seem more believable. But you probably didn't know that your bank may be making it super easy for thieves...

Many of the same shadowy organizations that pay people to promote male erectile dysfunction drugs via spam and hacked websites recently have enjoyed a surge in demand for medicines used to fight malaria, lupus and arthritis, thanks largely to unfounded suggestions...