Cyber Security in the AI Era: The 2026 Playbook
AI-generated phishing, deepfakes, prompt injection and shadow AI — the new attack surfaces every organisation must defend against, with a 90-day rollout plan.
Nirmal Rabari
AI Trainer · Cyber Security Educator
Generative AI gave attackers a productivity boost too. Phishing has better grammar, deepfakes are easier, and prompt-injection is the new SQL-injection. Here is the modern cyber-security playbook every leader and employee should know in 2026.
The 5 new attack surfaces
- AI-generated phishing — no more typos, native tone, hyper-targeted.
- Voice & video deepfakes — CEO-fraud at scale.
- Prompt injection — malicious instructions hidden in documents an LLM reads.
- Data exfiltration via chatbots — staff pasting secrets into public AI.
- Shadow AI — unsanctioned tools storing company data.
What to roll out in the next 90 days
- Enterprise AI policy: green / yellow / red tools list, signed by every employee.
- DLP rules that flag pastes > 500 chars into public AI domains.
- Out-of-band verification for any money / credential request — code phrases, not just video.
- Quarterly simulated AI-phishing & vishing drills.
- Prompt-injection testing on every internal AI app before launch.
Employee rules of thumb
- If a message creates urgency + asks for action → slow down, verify.
- If you didn't initiate the call → call back on the known number.
- Never paste passwords, customer PII, source code or financials into public AI.
- Report suspicious AI output (weird instructions, unexpected links) like you'd report phishing.
AI doesn't change the laws of cyber-security — it changes the speed and scale of attacks. The defence is the same: policy, training, verification, and rehearsal.
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