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Tell your IT or security team immediately, preserve the original message, and explain exactly what happened after the click. A click alone does not prove that an account or device is compromised; responders need to check whether you entered credentials, approved an app permission, downloaded or opened a file, and what activity followed.
What to do immediately
- Report the click through your organization’s established channel. Include the original message and approximate time. Say whether a page opened and whether you entered a password, approved an app permission, downloaded a file, or opened one. Report it even if the page closed or nothing unusual appeared. Microsoft advises work and school users who think they may have been phished to notify IT, and its phishing investigation playbook tells responders to establish what recipients did.
- Preserve the message and do not revisit the link. Use your organization’s reporting tool or process rather than casually forwarding the message or link. Microsoft identifies Outlook’s phishing-report action as a way to report and remove a message and improve filtering. See Microsoft’s phishing guidance.
- If you entered a password, identify the account to IT. Follow your employer’s account-recovery and password-reset process. Microsoft’s public guidance recommends changing affected passwords and any reused passwords, and enabling multifactor authentication (MFA). Tell IT promptly so the team can investigate sign-ins, revoke sessions or tokens where appropriate, and look for follow-on activity.
- If you approved an app permission, say so explicitly. App consent can grant access that a password change alone may not remove. The FBI Internet Crime Complaint Center (IC3) warns that consent-phishing tokens can provide persistent API access after authentication.
- If you downloaded or opened a file, report that and follow device instructions. Do not attempt your own cleanup unless IT directs you to. Responders may need to investigate endpoint activity and isolate or remediate the device; the FTC’s small-business phishing guidance recommends disconnecting devices infected with malware and following response procedures.
Match the response to what happened
| What happened | What to emphasize |
|---|---|
| Clicked, with no known credential entry, app approval, or download | Report it and preserve the message. Have responders verify the interaction and check for subsequent account or endpoint activity. A click alone does not establish compromise. |
| Entered a password | Tell IT which account was involved. Follow account recovery, reset affected and reused passwords, and investigate sign-ins and sessions. |
| Approved an app permission or consent prompt | Tell IT explicitly. Investigate and revoke unauthorized app grants or tokens as appropriate; a password reset alone may not remove app-token access. |
| Downloaded or opened a file, or saw suspicious execution | Notify IT and follow device instructions. Investigate endpoint activity and isolate or remediate the device if indicated. |
These distinctions follow Microsoft’s responder guidance on clicks, credential submission, attachment interaction, and follow-on activity, and the FBI IC3 warning about consent-phishing tokens.
What IT and security should investigate
The response should follow the organization’s incident plan and the evidence found; not every case requires every containment action. Microsoft’s phishing investigation playbook describes a practical sequence:
- Identify the original message and its Message-ID. Use mail trace or equivalent records to establish delivery, recipients, and routing.
- Find other recipients and campaign variants. Determine who opened the message, clicked, opened attachments, or submitted credentials.
- Correlate the report with identity sign-in and audit logs and endpoint activity.
- Where credentials or permissions may have been exposed, investigate suspicious sign-ins, password attacks, OAuth consent grants, token abuse, and unusual mailbox or collaboration activity.
- Contain based on findings: remove malicious messages from mailboxes, secure impacted accounts, revoke active sessions or tokens as appropriate, block malicious senders, domains, or URLs, and isolate or remediate affected endpoints.
- During recovery, review mailbox rules and forwarding settings, ensure appropriate credential resets and MFA, improve relevant filtering and anti-phishing policies, and update detections and the playbook.
Microsoft’s incident response overview says plans should address incidents according to business risk and impact and be tested regularly.
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#1 Best Overall
Yubico - Security Key C NFC - Basic Compatibility - Multi-Factor authentication (MFA) Security Key and passkey, Connect via USB-C or NFC, FIDO Certified
- POWERFUL SECURITY KEY: The Security Key C NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
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Does it matter that AI generated the message?
For immediate response, the important facts are what the employee interacted with and what access or activity followed. The official guidance cited here focuses on clicks, credential entry, app consent, file interaction, and resulting account or endpoint activity; it does not establish different containment steps for AI-written messages. Do not delay reporting while trying to determine how the message was written.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When to report outside the organization
Start with your employer’s incident-response channel. Whether to report externally depends on the facts and applicable jurisdiction; an employee click does not automatically mean every individual must file an external report. The FTC’s small-business guidance lists reporting phishing attempts to the FTC and Anti-Phishing Working Group. For the consent-phishing cases described in its advisory, the FBI IC3 describes reporting to IC3 or a local FBI field office.
Quick Recap
Bestseller No. 1
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FIDO2 U2F Security Key Passkey Two-Factor Authentication (2FA) USB Key PIN+Touch (Non-Biometric) USB-A Type TrustKey T110
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- POWERFUL SECURITY KEY: The Security Key NFC is the essential physical passkey for protecting your digital life from phishing attacks. It ensures only you can access your accounts.
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- FAST & CONVENIENT LOGIN: Plug in your Security Key NFC via USB-A and tap it, or tap it against your phone (NFC) to authenticate. No batteries, no internet connection, and no extra fees required.
- TRUSTED PASSKEY TECHNOLOGY: Uses the latest passkey standards (FIDO2/WebAuthn & FIDO U2F) but does not support One-Time Passwords. For complex needs, check out the YubiKey 5 Series.
- BUILT TO LAST: Made from tough, waterproof, and crush-resistant materials. Manufactured in Sweden and programmed in the USA with the highest security standards.
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- POWERFUL SECURITY KEY: The YubiKey 5C NFC is the most versatile physical passkey, protecting your digital life from phishing attacks. It ensures only you can access your accounts
- WORKS WITH 1000+ ACCOUNTS: Compatible with popular accounts like Google, Microsoft, and Apple. A single YubiKey 5C NFC secures 100+ of your favorite accounts, including email, password managers, and more
- FAST & CONVENIENT LOGIN: Plug in your YubiKey 5C NFC via USB and tap it, or tap it against your phone (NFC), to authenticate. No batteries, no internet connection, and no extra fees required
- MOST SECURE PASSKEY: Supports FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP/HOTP, Smart card (PIV), and OpenPGP. That means it’s versatile, working almost anywhere you need it
- PRIMARY & SPARE KEYS: Just like having a spare house key, we recommend buying two YubiKeys - one for daily use and one as a spare. That way you’ll never get locked out of your accounts
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