AI-powered defenses against modern spam
Marta De Santis
22 Nov 2024
Use AI and threat intel to spot modern spam and phishing faster.
Blend signals
Pair ML scoring with heuristics like sender age, hosting ASN, and writing style to increase precision.
- Retrain models weekly with fresh campaigns.
- Down-rank mail sent from new domains with no history.
- Use content fingerprinting to catch variants.
Human review where it counts
Route uncertain cases to analysts with context: raw headers, sandbox results, and similar past decisions.
- Set SLAs for reviews to avoid backlogs.
- Feed analyst decisions back to the models.
- Use canary accounts to capture emerging threats.
Respect privacy
Process and store data in line with regional requirements. Pseudonymize user identifiers in training datasets.
- Mask PII before model ingestion.
- Rotate and delete training data on schedule.
- Offer opt-outs where regulations require.
“Email security is strongest when controls, visibility, and user experience move together.”
SpamGuard Cloud Team
Tags
Email Security
Spam Prevention
Phishing Defense