द्वौ परिघौ ॥ कZ_०२.३.२५ ॥
dvau parighau
ଦୁଇଟି ପରିଘ (ତାଳା-ଦଣ୍ଡ/ବୋଲ୍ଟ) ଥିବା ଉଚିତ।
Redundancy increases resistance to forced entry and reduces the probability of single-point security failure.