New Wave of Cyberattacks Targeting MS Exchange Servers
Cybercriminals are leveraging two exploit chains (ProxyNotShell/OWASSRF) to target Microsoft Exchange servers, as warned by Bitdefender Labs.
January 25, 2023
New Spam Attack Abusing OAuth Apps to Target Microsoft Exchange Servers
According to Microsoft 365 Defender Research Team, in an incident they analyzed, malicious OAuth applications were deployed on compromised cloud tenants, and eventually, attackers took over Exchange servers to carry out spam campaigns.
September 23, 2022