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Facebook, Instagram, TikTok and Twitter Target Resellers of Hacked Accounts

Krebs on Security

Facebook, Instagram , TikTok , and Twitter this week all took steps to crack down on users involved in trafficking hijacked user accounts across their platforms. Facebook said it targeted a number of accounts tied to key sellers on OGUsers, as well as those who advertise the ability to broker stolen account sales.

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Malicious Office 365 Apps Are the Ultimate Insiders

Krebs on Security

After logging in, the user might see a prompt that looks something like this: These malicious apps allow attackers to bypass multi-factor authentication, because they are approved by the user after that user has already logged in. “Now, they’re compromising accounts in credible tenants first,” Proofpoint explains.

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The Rise of One-Time Password Interception Bots

Krebs on Security

In February, KrebsOnSecurity wrote about a novel cybercrime service that helped attackers intercept the one-time passwords (OTPs) that many websites require as a second authentication factor in addition to passwords. agency — advertised a web-based bot designed to trick targets into giving up OTP tokens.

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‘The Manipulaters’ Improve Phishing, Still Fail at Opsec

Krebs on Security

In May 2015, KrebsOnSecurity published a brief writeup about the brazen Manipulaters team, noting that they openly operated hundreds of web sites selling tools designed to trick people into giving up usernames and passwords, or deploying malicious software on their PCs. ” A number of questions, indeed. .

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‘Land Lordz’ Service Powers Airbnb Scams

Krebs on Security

Scammers who make a living swindling Airbnb.com customers have a powerful new tool at their disposal: A software-as-a-service offering called “ Land Lordz ,” which helps automate the creation and management of fake Airbnb Web sites and the sending of messages to advertise the fraudulent listings. co.uk , airbnb.pt-anuncio[.]com

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Would You Have Fallen for This Phone Scam?

Krebs on Security

But you probably didn’t know that these fraudsters also can use caller ID spoofing to trick your bank into giving up information about recent transactions on your account — data that can then be abused to make their phone scams more believable and expose you to additional forms of identity theft.

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Phishers are Angling for Your Cloud Providers

Krebs on Security

But when accounts at those CRM providers get hacked or phished, the results can be damaging for both the client’s brand and their customers. One source who had at least two employees fall for the scheme forwarded KrebsOnSecurity a response from UR’s privacy division, which blamed the incident on a third-party advertising partner.

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