Home » Security » Email attacks: Criminals bypass multi-factor authentication to hijack email accounts

Email attacks: Criminals bypass multi-factor authentication to hijack email accounts

Email attacks: Researchers at Abnormal Security have detected an increase in business email compromise attacks that successfully compromise email accounts despite the use of multi-factor authentication (MFA) and Conditional Access

Advertisement

IT News Nigeria

This is possible because legacy email protocols, including IMAP, SMTP, MAPI and POP, don’t support MFA. In addition many common applications — such as those used by mobile email clients (for example, iOS Mail for iOS 10 and older) — don’t support modern authentication.

A common pattern in account takeovers is that after being blocked by MFA an attacker will immediately switch to using a legacy application. In fact, most credential stuffing campaigns use legacy applications such as IMAP4 in order to ensure they don’t encounter difficulties from MFA at any point.

Abnormal has observed successful account takeovers where the attacker bypasses the policy by obscuring the name of the app they’re using. In one case, the attacker initially attempted to sign in using a legacy application but was blocked by Conditional Access. The attacker then waited several days before trying again, this time with the app information obscured, and successfully gained access to the account.

This demonstrates that while most account takeover attempts use brute force attacks and password spraying techniques, some attackers are more methodical and deliberate.

 For more visit Abnormal Security blog , Twitter staff hack

Photo Credit:Balefire/Shutterstock

  • betanews

READ ALSO  Security: Nigeria Enforces No National ID Number No Mobile Number

Leave a Reply

Your email address will not be published. Required fields are marked *

*

x

Check Also

anonymous

Justice For the Victims: Anonymous attacks Nigerian police, gives President Buhari 72 hours

Anonymous has attacked the Nigerian police ...

account takeovers 61 percent

Fraudsters target account takeovers during the COVID-19 pandemic

account takeovers : Attempted account takeovers ...

Zoom boost end to end security

Zoom boosts security with 2FA for all users

Zoom: After suddenly hitting the big ...

Check Point August 2020’s Most Wanted Malware: Evolved Qbot Trojan Ranks On Top Malware List For First Time

Check Point researchers find dangerous new ...

scams phishing malware

Scams, phishing and malware : 60% of emails in May and June were fraudulent

Scams , phishing, and malware : ...