LinuxSecurity.com

Imagine releasing a software solution into the market only to realize the user cannot use the app properly. They have been reporting numerous bugs, which has lowered your reputation and reliability.

Business email compromise has long involved targeted impersonation and fraudulent payment requests. Generative AI can make those established tactics faster to prepare and more convincingGenerative AI has turned BEC into a tailored, low-noise operation that mimics writing style, voice, and even video presence. This piece looks at what's actually changed under the hood, what defenders are testing in response, and why so many organizations are still structurally unprepared for it.

If you run Postfix, Exim, or OpenSMTPD on Linux, DKIM is already your problem. The private key lives on your box. If that key leaks or signing stops, your domain reputation moves without you.

You've probably trained your team to look for red flags. Odd sender names, urgent language, mismatched links. But a well-crafted spoofed email won't trip any of those wires. It looks legitimate, sounds legitimate, and often comes from a domain that passes every automated check you throw at it.

Template email is more than a design tool in the campaign of consistent communication; it also has a hidden danger.

Email threats have long outgrown spamming and obvious phishing. Attackers now exploit trust itself. They impersonate internal users, hijack legitimate threads, and abuse misconfigured configurations. Defenses like perimeter filtering or static rules are not adequate any longer. A Zero Trust model redefines the issue by eliminating implicit trust at all phases of email processing. This shift is especially important in modern Linux mail environments where services are often modular, network-exp...

QR codes were originally designed for industrial logistics. They were optimized for efficiency, not security. In recent years, they have become embedded across enterprise workflows, authentication flows, ticketing systems, packaging, and internal documentation systems. That expansion has created a new attack surface.

Suspicious emails rarely confess in the body. The clues live in headers, MIME parts, and tiny inconsistencies between what a message claims and what it actually delivers. If your team can read those signals quickly—and connect them to the attachment—you’ll cut off credential theft, loaders, and ransomware without slowing operations.