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MAILEmailby Mimecast

Email protection

Email remains the first way in. Your mail platform's built-in filter is no longer enough, now that lures are written by language models.

Mimecast
  • 1st
    way into a compromise
  • At click time
    links re-analysed
  • Archiving
    evidential, long term

Why the built-in filter is no longer enough

CERT-FR documents it: generative AI has removed the weak signals phishing detection used to rely on — the spelling mistake, the clumsy turn of phrase, the approximate translation. The message now arrives in flawless language, tailored to the target's context and org chart. What remains detectable lies elsewhere: the sending infrastructure, the age of the domain, the absence of any prior exchange.

The layers of protection

  • Link protection

    URLs rewritten and re-analysed at click time, not only on delivery. That is essential: a clean link on arrival can turn malicious two hours later.

  • Attachment analysis

    Detonation in an isolated environment before delivery, with the option to deliver a neutralised version immediately while analysis runs.

  • Impersonation detection

    Identification of CEO fraud attempts and lookalike domains. This category contains neither link nor attachment: only context analysis catches it.

  • Archiving and continuity

    Long-term evidential retention, and access to email even when the main platform is down.

  • User training

    Calibrated simulation campaigns and short, targeted training for those who need it — not one annual session for everyone.

Our position on simulations

A simulation campaign whose purpose is to produce a click rate for a board meeting is useless. The one that matters measures reporting speed: how long between the first message of a campaign arriving and the first alert raised by a user. That figure predicts the severity of the real incident.

Next step

A question? A project?

Our security specialists are available to you. A NextGen-SOC demonstration, an audit, or simply a conversation — start here.

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