the most vulnerable or insecure part of a system
самая уязвимая или небезопасная часть системы (samaya uzyavimaya ili nebezopasnaya chast sistemy)
"Humans are often the weak link in cybersecurity."
"Люди часто являются слабым звеном в кибербезопасности." (lyudi chasto yavlyayutsya slabym zvenom v kiberbezopasnosti)
without any doubt; completely certain
to be responsible for something bad that happens
Don’t depend on only one plan or resource.
to finish or conclude something
The truth can be painful to hear.
Very inexperienced or new at something.