But the encryption at its core relies on an insecure operation called Electronic Codebook (ECB) mode. Despite being pointed out about this problem, Microsoft has clearly stated that it will not ...

OME encrypts sent or received emails through the Electronic Code Book mode, regarded to be a broken or risky cryptographic algorithm. Microsoft 365 uses weak encryption that exposes emails to ...

It uses the Electronic Codebook (ECB) encryption implementation, but according to WithSecure consultant and security researcher Harry Sintonen, this mode of operation leaks certain structural ...

Microsoft 365 (formerly Office 365) offers a method of sending encrypted messages (Office 365 Message Encryption, or OME) using Electronic Codebook (ECB), a mode of operation known to expose ...

OME uses the electronic codebook (ECB) block cipher, which leaks structural information about the message. This means if an attacker obtains many emails they can infer the contents of the messages ...

Cybersecurity company WithSecure Oyj is warning that a security flaw in Microsoft 365 Message Encryption can leak structural information in messages.WithSecure, previously known as F-Secure until ...