Category Archives: Latest Warnings

Florence, Ala. Hit By Ransomware 12 Days After Being Alerted by KrebsOnSecurity

June 9, 2020
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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 $300,000 worth of bitcoin. City officials now say they plan to pay the ransom demand, in hopes of keeping the personal data of their citizens off of the Internet.

U.S. Secret Service: “Massive Fraud” Against State Unemployment Insurance Programs

May 16, 2020
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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 Service.

A memo seen by KrebsOnSecurity that the Secret Service sent to field offices around the United States this week says the ring has been filing unemployment claims in different states using Social Security numbers and other personally identifiable information (PII) belonging to identity theft victims, and that “a substantial amount of the fraudulent benefits submitted have used PII from first responders, government personnel and school employees.”

Microsoft Patch Tuesday, May 2020 Edition

May 12, 2020
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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 any of your machines it’s time once again to prepare to get your patches on.

Tech Support Scam Uses Child Porn Warning

May 7, 2020
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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 suspended unless they call an “MS Support” number to reinstate the license, but the number goes to a phony tech support scam that tries to trick callers into giving fraudsters direct access to their PCs.

Would You Have Fallen for This Phone Scam?

April 28, 2020
90 Comments

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 to impersonate the bank, by giving away information about recent transactions on your account via automated, phone-based customer support systems.

When in Doubt: Hang Up, Look Up, & Call Back

April 23, 2020
144 Comments

Many security-conscious people probably think they’d never fall for a phone-based phishing scam. But if your response to such a scam involves anything other than hanging up and calling back the entity that claims to be calling, you may be in for a rude awakening. Here’s how one security and tech-savvy reader got taken for more than $10,000 in an elaborate, weeks-long ruse.

Sipping from the Coronavirus Domain Firehose

April 16, 2020
33 Comments

Security experts are poring over thousands of new Coronavirus-themed domain names registered each day, but this often manual effort struggles to keep pace with the flood of domains invoking the virus to promote malware and phishing sites, as well as non-existent healthcare products and charities. As a result, domain name registrars are under increasing pressure to do more to combat scams and misinformation during the COVID-19 pandemic.

New IRS Site Could Make it Easy for Thieves to Intercept Some Stimulus Payments

April 10, 2020
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The U.S. federal government is now in the process of sending Economic Impact Payments by direct deposit to millions of Americans. Most who are eligible for payments can expect to have funds direct-deposited into the same bank accounts listed on previous years’ tax filings sometime next week. Today, the Internal Revenue Service (IRS) stood up a site to collect bank account information from the many Americans who don’t usually file a tax return. The question is, will those non-filers have a chance to claim their payments before fraudsters do?

Phish of GoDaddy Employee Jeopardized Escrow.com, Among Others

March 31, 2020
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A spear-phishing attack this week hooked a customer service employee at GoDaddy.com, the world’s largest domain name registrar, KrebsOnSecurity has learned. The incident gave the phisher the ability to view and modify key customer records, access that was used to briefly hijack domains for a half-dozen GoDaddy customers, including transaction brokering site escrow.com.

Zyxel Flaw Powers New Mirai IoT Botnet Strain

March 20, 2020
7 Comments

In February, hardware maker Zyxel fixed a zero-day vulnerability in its routers and VPN firewall products after KrebsOnSecurity told the company the flaw was being abused by attackers to break into devices. This week, security researchers said they spotted that same vulnerability being exploited by a new variant of Mirai, a malware strain that targets vulnerable Internet of Things (IoT) devices for use in large-scale attacks and as proxies for other cybercrime activity.