Access through a letter

Access through secondary means

Active request

Activity-based permission

Activity log

Automation detection

Behavioural biometrics

Behavioural patterns

Data licences

Decision testing

Delegate permissions

Emergency contacts

End-to-end encryption

Future decision notice

Geofencing

Gesture matching

Implied consent

Inactivity checking

Just-in-time consent

Key ceremony

Marketplace

Multi-factor using a generator

Multi-factor using an object

Multi-factor using text message

One-time access

Opt-in to give consent

Opt-out to remove consent

Physical biometrics

Physical security

Post-access notification

Private link

Proximity sharing

Pseudo-anonymous data

Recovery codes

Secret answer

Smart contract access

Terms and conditions

Time limiting

Up-front consent

Verifiable proof

Word matching

Zero-knowledge sharing