Cybersecurity in the AI Era: How to Recognize AI Phishing and Deepfake Attacks

A fraudulent email or voice can sound polished and know internal details. That is not identity proof. AI phishing is not always convincing either. Look for an account change, urgency, an unfamiliar domain, or an unusual request. FBI IC3.

Cybersecurity is no longer just about firewalls and antivirus software. It's about whether your people can recognize a well-crafted attack.

What AI Phishing Looks Like in 2026

Traditional phishing was relatively easy to spot. Poor grammar, suspicious sender, generic message. AI phishing is a different league.

Personalized Emails

AI can analyze publicly available information about the target (LinkedIn profile, company website, social media) and create an email that looks like it was written by a specific person from the company. No typos, the right tone, relevant context.

Perfect Language

One of the traditional warning signs was poor language in phishing emails. With LLM models, this warning disappears. AI generates fluent, grammatically correct text including industry terminology.

How many of your employees would be able to distinguish a perfectly written phishing email from a real internal message?

Contextual Attacks

Attackers combine AI with OSINT (open source intelligence). They monitor public procurements, company changes, financial statements. The phishing email then arrives at the right time with relevant content.

Deepfake: When the Boss Calls and It's Not the Boss

In 2025, cases emerged where attackers used deepfake voices for calls to managers:

• The "CEO" calls requesting an urgent transfer
• A "supplier" calls with new banking details
• "IT department" calls requesting login credentials

A voice and caller ID do not establish identity. Verify changed payment details using a known contact from an existing contract and independent approval.

How to Defend: Technical Measures

Email Security

• SPF, DKIM, DMARC as the foundation for sender verification
• AI-powered email filtering for analyzing content and behavioral patterns
• Link sandboxing for automatic link verification in a safe environment

Multi-Factor Authentication

• MFA on all critical systems
• Hardware keys (FIDO2) for the most sensitive access
• Biometrics as an additional factor

Zero Trust Architecture

• Verify every access, not just at the perimeter
• Minimum privileges (least privilege)
• Continuous anomaly monitoring

How to Defend: Internal Procedures

Technology alone isn't enough. Without established internal procedures, it's only half the solution.

Verification Protocol for Financial Operations

• No transfer above a defined amount without second-channel verification
• Callback to a verified number (not the number from the email)
• Dual signature for changes to supplier banking details

Reporting Suspicious Messages

• Simple way to report a suspicious email (button in the email client)
• No penalties for false alarms, better to report 10 false ones than miss 1 real one
• Quick feedback from the security team
• Monthly reports on the number of reported messages and their evaluation

Regular Training

• Simulated phishing campaigns (not as punishment, but as training)
• Updated examples of real attacks
• Special training for management and finance departments

Security in Our Projects

When a request changes banking details, a safer system flags it for verification through a second channel and records the change in an audit log. The rule should be evaluated from confirmed incidents and false positives, not an unsupported marketing anecdote.

Checklist for Your Company

• Do you have SPF, DKIM, and DMARC set up for your email domain?
• Do you use MFA on all critical systems?
• Do you have a defined procedure for verifying financial operations?
• Have your employees completed security training in the last 6 months?
• Do you have a simple way to report suspicious messages?
• Do you have an incident response plan in case of a successful attack?

If more than two items are missing, assign an owner and a date for an exercise. It should test both reporting and the response. We can help with the scenario and training.