Email has been around for 50 years, and while it's fast and efficient, it's not always secure. Best-in-breed security is essential for protecting companies from phishing and other cyberattacks.

The unpatched flaw affects AsyncOS-based Secure Email appliances, with Cisco investigating scope and urging rebuilds in confirmed compromise cases. Cisco has warned that a China-linked hacking group ...

Cisco notified customers this week to patch a critical vulnerability that could allow attackers to bypass authentication and login into the web management interface of Cisco email gateway appliances ...

Cisco has addressed a high severity vulnerability that could allow remote attackers to crash Cisco Secure Email appliances using maliciously crafted email messages. The security flaw (tracked as ...

Better late than never. Cisco this week patched a ‘critical’ zero-day flaw in the company’s email security and management gateways that has hung over customers’ heads since December. Tracked as ...

Cisco patches critical RCE flaw (CVE-2025-20393) in Secure Email appliances Chinese state-sponsored groups exploited it for weeks using Aquashell and tunneling tools Updates remove persistence ...

Cisco's trusted security reputation is being used against users as part of an email phishing scheme. According to email security firm Raven AI, attackers have weaponized Cisco Safe Links, a feature ...

Your email security appliance running Cisco AsyncOS could enter an endless loop of crashing and restarting if it attempts to process a specially crafted encrypted email. Cisco has disclosed fixes for ...

New vulnerabilities found in Cisco internal testing allow remote access and scripting that could lead to the loss of sensitive user data. Cisco has issued alerts for a vulnerability found in its email ...

The Electronic Frontier Foundation (EFF) launched HTTPS-encryption initiative Let's Encrypt two years ago with Mozilla and Cisco. Now it's turning its attention to email servers with a new project ...

The two vendors revealed details about the cyberattacks in separate disclosures Wednesday. Zero-day vulnerabilities in Cisco and SonicWall products have been exploited in new cyberattack campaigns, ...