# When does Knox trip?

### Short Answer:
Knox trips whenever an "untrusted" Boot path has been booted from, this means anything which isn't the default boot configuration, including custom ROMs or Magisk-patched boot images.

### Long Answer:
To be more specific than above, the e-Fuse will be tripped when any of the following applies:
the device boots with a non-Samsung signed...:
- Bootloader
- Kernel
- Kernel initialization script
- Data

*[Bootloader]: First piece of software your Phone loads. It's responsible of loading the Linux Kernel, Android, or another OS.
*[Kernel]: A piece of software between your hardware and other software