1 files changed, 4 insertions, 1 deletions
diff --git a/TODO.md b/TODO.md
index e2fb3fe..b666ce3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -35,6 +35,9 @@
 - Differentiate empty strings and errors (see `result_from_string`).
 - Check integer conversions.
 - Consider implementing `Into<CommandError>` for `(Device, CommandError)`
-- Check error handling in PasswordSafe::drop().
+- Lock password safe in `PasswordSafe::drop()` (see [nitrokey-storage-firmware
+  issue 65][]).
 - Disable creation of multiple password safes at the same time.
 - Check timing in Storage tests.
+
+[nitrokey-storage-firmware issue 65]: https://github.com/Nitrokey/nitrokey-storage-firmware/issues/65