1. OSDP (Open Supervised Device Protocol)

OSDP is the gold standard for secure access control communication. Developed by the Security Industry Association, OSDP offers:

• Encryption: Protects credentials and data from hackers
• Two-way communication: Devices and controllers talk to each other for real-time security
• Supervision: Instantly detects tampering and wiring issues
• Scalability: Perfect for large buildings and enterprise systems

2. Wiegand

Wiegand is a widely used legacy protocol. It’s simple, reliable, and used in millions of access control systems worldwide. However, it does not offer encryption, so many organizations are upgrading to OSDP for better security.

3. MIFARE

MIFARE is a contactless smart card technology, perfect for secure access, transport, and cashless payments. Advantages include:

• Fast tap-and-go access
• High security (uses encryption)
• Flexible: Can store multiple credentials and applications on one card

4. RFID (Radio-Frequency Identification)

RFID uses radio waves to identify and grant access. Used with cards, fobs, or wristbands, RFID offers:

• Contactless convenience
• Fast throughput for high-traffic areas
• Flexible range (short-distance to long-range options)

5. Biometrics

Biometrics is the ultimate access control method, using unique physical characteristics such as fingerprints, facial recognition, or iris scans. Benefits include:

• No cards or codes to lose
• Highest level of security
• Fast and convenient for authorized users