fail-safe
fault-tolerant
brittle
crashable
flaky
instability
take a shit
never interrupt your enemy when he is making a mistake
redeeming
close the stable door after the horse has bolted
smoothness
hold
risklessness
defend
guard
unfix
weaklink
nugatory
setback
safetied
antihazard
bulletproof
save vs.
throw
bluescreen
faultless
ruin
softly, softly, catchee monkey
guardrail
anti-exploit
clear
let lie
antireplay
wariness
conserve
fatal
safety-critical
maintain
keep up
failure rate
preserve
omalous
forethought
precaution
caution
care
fail-soft
avertible
errorist
bottleneck
fail fast
right away
control
whistle past the graveyard
fault-prone
promptly
encumbrance
failureproof
hindrance
-safe
hitch
bathtub curve
inerrably
misfortune
chink
bug check
preventative
bad luck
dysfunction
precautional
unmitigable
nonce
preventive
incumbrance
Jenga
hinderance
an ounce of prevention is better than a pound of cure
trip up
redundancy
interrupt
single point of failure
catch
interference
break down
crush
robust
precautionary
passé
hazardproof
surgical strike
fast
monkey trap
the terrorists will have won
regret
tip-and-run
antiretaliatory
counter-sabotage
hit-and-run
to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.