This file is indexed.

/lib/udev/rules.d/69-yubikey.rules is in libykpers-1-1 1.17.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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ACTION!="add|change", GOTO="yubico_end"

# Udev rules for letting the console user access the Yubikey USB
# device node, needed for challenge/response to work correctly.

# Yubico Yubikey II
ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0010|0110|0111|0114|0116|0401|0403|0405|0407|0410", \
    ENV{ID_SECURITY_TOKEN}="1"

LABEL="yubico_end"