TI MSP430 uses BSL (Bootstrap Loader) password protection. MSP430 decryption bypasses BSL to recover flash firmware.

MSP430 Protection:
- BSL password (32 bytes) locks flash read/write.
- JTAG/SWD fuse bit disables debug.
- Wrong BSL password triggers mass erase.
- Mass erase clears flash permanently.

MSP430 Decryption Methods:
1. Voltage Glitching: glitch VCC during BSL auth.
2. Clock Glitching: fault password check.
3. JTAG Fuse Bypass: under-voltage on TEST/VPP.
4. Decapsulation: read flash microscopically.
5. Side-Channel: power analysis during auth.

MSP430 decryption is common in low-power IoT, sensor nodes, and medical devices.