A new email extortion scam is making the rounds, threatening that someone has planted bombs within the recipient’s building that will be detonated unless a hefty bitcoin ransom is paid by the end of the business day. Sources at multiple U.S. based financial institutions reported receiving the ...
Is it fair to judge an organization’s information security posture simply by looking at its Internet-facing assets for weaknesses commonly sought after and exploited by attackers, such as outdated software or accidentally exposed data and devices? Fair or not, a number of nascent efforts are u...
Adobe and Microsoft each released updates today to tackle critical security weaknesses in their software. Microsoft’s December patch batch is relatively light, addressing more than three dozen vulnerabilities in Windows and related applications. Adobe has issued security fixes for its Acrobat ...
Back in April 2015, I tweeted about receiving a letter via snail mail suggesting the search engine rankings for a domain registered in my name would suffer if I didn’t pay a bill for some kind of dubious-looking service I’d never heard of. But it wasn’t until the past week tha...
The ringleader of a gang of cyber hooligans that made bomb threats against hundreds of schools and launched distributed denial-of-service (DDoS) attacks against Web sites — including KrebsOnSecurity on multiple occasions — has been sentenced to three years in a U.K. prison, and faces the...
Software giant Citrix Systems recently forced a password reset for many users of its Sharefile content collaboration service, warning it would be doing this on a regular basis in response to password-guessing attacks that target people who re-use passwords across multiple Web sites. Many Sharef...
The parent firm of bling retailers Jared and Kay Jewelers has fixed a bug in the Web sites of both companies that exposed the order information for all of their online customers. In mid-November 2018, KrebsOnSecurity heard from a Jared customer who found something curious after receiving a rece...
We don’t yet know the root cause(s) that forced Marriott this week to disclose a four-year-long breach involving the personal and financial information of 500 million guests of its Starwood hotel properties. But anytime we see such a colossal intrusion go undetected for so long, the ultimate c...
Hospitality giant Marriott today disclosed a massive data breach exposing the personal and financial information on as many as a half billion customers who made reservations at any of its Starwood properties over the past four years. Marriott said the breach involved unauthorized access to a databas...
Maybe you were once advised to “look for the padlock” as a means of telling legitimate e-commerce sites from phishing or malware traps. Unfortunately, this has never been more useless advice. New research indicates that half of all phishing scams are now hosted on Web sites whose Interne...
‘Tis the season when even those who know a thing or two about Internet scams tend to let down their guard in the face of an eye-popping discount or the stress of last-minute holiday shopping. So here’s a quick refresher course on how to make it through the next few weeks without getting ...
U.S. Postal Service just fixed a security weakness that allowed anyone who has an account at usps.com to view account details for some 60 million other users, and in some cases to modify account details on their behalf. Image: USPS.com KrebsOnSecurity was contacted last week by a researcher who...
A California man who pleaded guilty Tuesday to causing dozens of swatting attacks — including a deadly incident in Kansas last year — now faces 20 or more years in prison. Tyler Raj Barriss, in an undated selfie. Tyler Barriss, 25, went by the nickname SWAuTistic on Twitter, and reveled ...
Microsoft on Tuesday released 16 software updates to fix more than 60 security holes in various flavors of Windows and other Microsoft products. Adobe also has security patches available for Flash Player, Acrobat and Reader users. As per usual, most of the critical flaws — those that can ...
If you own a domain name that gets decent traffic and you fail to pay its annual renewal fee, chances are this mistake will be costly for you and for others. Lately, neglected domains have been getting scooped up by crooks who use them to set up fake e-commerce sites that steal credit card details f...
A Connecticut man who’s earned bug bounty rewards and public recognition from top telecom companies for finding and reporting security holes in their Web sites secretly operated a service that leveraged these same flaws to sell their customers’ personal data, KrebsOnSecurity has learned....
A year ago, KrebsOnSecurity warned that “Informed Delivery,” a new offering from the U.S. Postal Service (USPS) that lets residents view scanned images of all incoming mail, was likely to be abused by identity thieves and other fraudsters unless the USPS beefed up security arou...
More and more scams and attacks are happening over the phone. Whenever you get an urgent phone call on the phone pressuring you to do something (such as a caller pretending to be the tax department or Microsoft Tech Support) be very suspicious. It's most likely a scammer trying to trick you out of m...
KrebsOnSecurity recently had a chance to interview members of the REACT Task Force, a team of law enforcement officers and prosecutors based in Santa Clara, Calif. that has been tracking down individuals engaged in unauthorized “SIM swaps” — a complex form of mobile phone fraud tha...
Never send an email when you are angry; you will most likely regret it later. Instead, when you are emotional and want to reply to someone, open up an email and write everything you feel, but do not send it. (Be sure there is no name in the TO field so that you do not accidently send it.) After you ...
