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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsProtect your organization with layered controls: require phishing-resistant multifactor authentication (MFA), authenticate and filter email, monitor endpoints and accounts, train employees to verify and report suspicious requests, and restrict access so one compromised account cannot expose everything. AI can help attackers create polished messages or impersonate people, but polished wording is not proof of identity—and the core defenses remain the same.
What AI changes—and what it does not
Generative AI can help produce convincing text and support impersonation. That makes it riskier to judge a message by spelling, tone, or apparent familiarity alone. A message that sounds like a colleague may still be fraudulent; verify sensitive requests through a known, independent channel.
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AI is not required for phishing, and no single control will stop every attack. CISA’s AI-enabled phishing recommendations appear in guidance focused on election risks; the agency recommends phishing-resistant MFA, endpoint detection and response (EDR), and email authentication protocols against sophisticated AI-enabled phishing and social engineering. CISA’s election-risk guidance is useful for those recommendations, while its business MFA and joint phishing guidance provide broader implementation context.
1. Harden sign-in, starting with high-impact accounts
Require MFA for email, file storage, remote access, and privileged accounts. Prioritize administrators and other high-impact users if rollout has to be staged. CISA advises organizations to enable MFA across systems such as email, file storage, and remote access. CISA’s business MFA guidance identifies a physical security key, such as a YubiKey, as its strongest listed business MFA option.
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- 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.
- WORKS WITH 1000+ ACCOUNTS: Compatible with Google, Microsoft, and Apple. A single Security Key C NFC secures 100 of your favorite accounts, including email, password managers, and more.
- FAST & CONVENIENT LOGIN: Plug in your Security Key C NFC via USB-C 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.
Choose MFA by phishing resistance
| Method | Practical role | Important consideration |
|---|---|---|
| FIDO/WebAuthn security key | Preferred phishing-resistant option where supported | Check identity-provider and device compatibility, and plan for spare keys and account recovery. |
| Authenticator app with number matching | Useful interim improvement if phishing-resistant MFA is not yet deployable | It is not equivalent to FIDO/WebAuthn. |
| Authenticator app one-time codes | Better than password-only access | Codes can still be exposed through phishing relay; correctly implemented origin-bound FIDO flows are designed to resist that attack. |
| SMS or email codes | Familiar fallback | Weaker choices; do not make them the preferred endpoint for a phishing-resistant MFA program. |
For a physical product, evaluate the FIDO security key category rather than assuming a particular model will work for everyone. Confirm support across your identity provider and devices, issue spare keys where appropriate, and document recovery for lost or damaged keys. CISA’s MFA guidance lists security keys; it does not establish one best model for every organization. See also the technical context in CISA’s phishing-resistant MFA guidance.
2. Authenticate and filter organizational email
Configure SPF, DKIM, and DMARC for your organization’s domains. Set a deliberate DMARC policy and monitor results as you implement it. These protocols help guard against domain spoofing, but they do not prove that an email’s contents or request are trustworthy. CISA describes email authentication and related defenses in its joint phishing guidance.
Rank #2
- FIDO2 + FIDO U2F certified and supported USB security key
- Secured by NXP semiconductors
- Works in every browser and application without installing any drivers
- Supports desktops, laptops, tablets via USB-A and/or NFC, and supports iOS/Android Phones via NFC
- Helps protect your accounts from phishing and other cyber-attacks. Prevents your devices from unauthorized use.
Pair domain authentication with email filtering suited to your environment, including controls for links and attachments. Assess controls by the threats they cover, integration with your mail platform, alert visibility, false-positive handling, and your team’s ability to operate them. SPF, DKIM, and DMARC reduce risk; they are not a guarantee that every phishing message will be stopped.
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3. Detect suspicious activity and contain it
Use EDR and centralized logging appropriate to your organization’s capacity. Monitor suspicious sign-ins, unusual account activity, and requests to change payment details or disclose sensitive information. CISA’s election-risk document specifically recommends EDR in response to sophisticated AI-enabled phishing and social engineering; the broader implementation should reflect your own systems and response capacity.
Rank #3
- FIDO2 + FIDO U2F certified and supported USB security key
- Supports Computers, Laptops, Tablets, and Mobile Devices with a USB-C port and/or NFC
- Works without downloading any drivers. Supported OS: Android, Chrome OS, Windows, MacOS, Linux
- Durable design made to last for a long time with everyday use. Water-resistant (IP67)
- Helps protect your accounts from phishing and other cyber-attacks. Prevents your devices from unauthorized use.
Make sure reports of suspicious messages lead to action. A practical response path can include:
- Preserve the reported message and its headers where feasible.
- Warn other recipients if the message was distributed more broadly.
- Investigate potentially affected accounts and access.
- Revoke sessions or reset credentials when the investigation indicates those steps are appropriate.
These are sensible elements of a response plan, not a universal incident workflow prescribed for every organization. Define roles and escalation paths before an incident, based on your environment and capacity.
Rank #4
- FIDO2 SECURITY KEY: A versatile, tamper-evident USB-C authentication device with sensitive presence detection for online security. FIDO 2.0 level 1 and U2F certified
- PASSWORDLESS CONVENIENCE: Replace frustrating passwords with a simple 4-digit PIN for accessing apps and sites. Seamlessly login to web apps and Windows sessions
- BROAD COMPATIBILITY: Works with Windows, Mac, Linux, Apple, iOS, iPhone, Android and USB-C devices. Seamlessly integrates with Identity Providers or Credential Management Systems supporting FIDO2, including Thales, Microsoft, AWS, and Google
- ENHANCED USER ADOPTION: Features a sensitive presence detector on the USB key, providing ease of use and superior security. Certified for U2F and FIDO2, ideal for individuals who want to secure access to their personal online accounts - Microsoft, Google, Twitter, Facebook, GitHub
- THALES: We offer a wide range of FIDO authenticators, providing robust, phishing-resistant MFA that comply with stringent regulations. With almost three decades of experience, Thales is a pioneer in passwordless authentication devices, supported globally by the FIDO Alliance and industry analysts
4. Make verification and reporting routine
Teach employees to verify sensitive requests—such as payment changes, credential requests, or disclosures of confidential information—through a known, independent channel. They should not reply to the suspicious message or use a phone number or link supplied in it to verify the request.
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Provide a simple reporting route, such as a mail-client report button or a clearly communicated reporting address. Explain what happens after a report and practice the process. CISA recommends user training and phishing exercises in its red-team advisory. Training matters, but employees should not be the only security boundary: technical controls should help catch mistakes and limit what an exposed account can do.
Best Value
- SECURITY KEY FOR ENTERPRISE ACCESS: Supports FIDO2 passkeys and U2F for secure authentication across enterprise IT systems.
- PHISHING-RESISTANT AUTHENTICATION: Enables passwordless login with secure on-device credential storage and PIN-based user verification.
- COMPATIBLE WITH ENTERPRISE SYSTEMS: Works with FIDO2, WebAuthn, and U2F across enterprise, cloud, and modern IT environments.
- DRIVERLESS FIDO2 AUTHENTICATION: FIDO2 works natively with modern browsers and platforms. No drivers required.
- USB AND NFC CONNECTIVITY: Supports authentication via USB-C and NFC. No batteries required.
5. Limit the damage a compromised account can cause
Apply role-based access and least privilege: give each account only the access its user needs, review accounts regularly, and remove unnecessary permissions. Monitor accounts for unusual activity. Where suitable, centralized sign-on can simplify account lifecycle management and provide an audit trail—but protect it with strong MFA, since it can connect users to multiple services.
Maintain incident and recovery procedures so a compromised mailbox does not automatically expose every system. Review access paths and dependencies as part of that planning; the right controls depend on your identity provider, email platform, obligations, and operational capacity.
How to prioritize the work
- Protect privileged and high-impact accounts first. Turn on MFA for administrators and critical services, then expand coverage to email, file storage, and remote access.
- Move toward phishing-resistant MFA. Use FIDO/WebAuthn where compatible; use number matching as an interim improvement rather than treating it as equivalent.
- Improve email defenses. Configure SPF, DKIM, and DMARC with monitoring, and use suitable filtering for links and attachments.
- Make detection actionable. Ensure EDR and logs can help your team investigate suspicious sign-ins and account activity, and assign owners for response.
- Practice the human response. Teach independent verification, make reporting easy, and run phishing exercises.
- Reduce blast radius. Review privileges and accounts, remove unnecessary access, and maintain recovery procedures.
This ordering is a practical starting point, not a substitute for an organization-specific risk assessment. The cited material is primarily U.S. CISA guidance published between 2023 and 2025; platform configurations and requirements vary.
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