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Email Link Protection and Decoder

Security features for CUMC email accounts include Targeted Attack Protection (TAP). TAP automatically rewrites links found in incoming email messages in order to evaluate whether or not the linked content is malicious. As phishing and other targeted attacks become more sophisticated, TAP is a solution that meets the challenge and helps protect the CUMC community and its resources.

How Does TAP Work?
TAP works by redirecting links that appear in email messages you receive. In most cases, this redirection will be completely unnoticeable to you. In some cases – including unformatted or “plaintext” email messages – you may see the rewritten link, which will begin with https://urldefense.proofpoint.com...

Hovering your cursor over the link in the message will also show if it was re-written:

Link in an email message re-written to go through the security filter

Any clicks on the re-written link will first go through the security filter which can further detect malicious web pages. If the actual linked page is safe, you will reach the intended site; if not the page will be blocked and you will see a message explaining why.

Web Site blocked message

If you need to retrieve the original, unaltered link, you can use the Decode a Link form below.
IMPORTANT: Intentionally visiting a website considered malicious by the security filter could lead to possible infection of the end-user workstation and lead to the compromise of the Medical Center.

  • Note that incoming messages may still be blocked by the CUMC spam filter. TAP will only scan and modify links in messages that have not been blocked or quarantined.
  • If you feel that a site has been improperly blocked by TAP and would like to have it cleared for the CUMC community, please contact 5-Help with pertinent information.
  • Be sure you are still reviewing any links before clicking on them. Targeted attacks are constantly evolving and may slip through security measures. See the Email Security page for additional help.
Decode a Link
Use the form below to verify whether a link you received in an email message is valid, or is likely to be a phishing or malware installation attempt.

Copy the link from your CUMC email message, paste it into the field below and click the Decode button.

Decode a ProofPoint URL Defense link:





Decoded URL:

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Last updated 5/25/2018