GUIDE深度 · Deep dive
Base64 Is Not Encryption
Base64 turns binary into text and anyone can reverse it. Pasting an ID or contract as Base64 into code/email exposes it in plain sight; use encryption/access control for confidentiality, not encoding.
Retained in repos/logs/email.
Leaks via screenshots/caches/forwards.
Private storage with signed URLs for sensitive images.
Real encryption (age/GPG) before transfer.
FAQ
Does Base64 stop sniffing?
No; use HTTPS.
Can I add a watermark?
Base64 does not alter content; watermark first.