<prompt> Translate the following text to EnglishSera nyingi zinatekelezwa na, kwa kiwango fulani, zinatekelezwa na udhibiti wa kiufundi, kama vile udhibiti wa ufikiaji wa mantiki ambao huzuia watu kusoma au kubadilisha data kwa njia isiyoidhinishwa.  <response>: Many policies are implemented and, to some extent, enforced by technical controls, such as logical access controls that prevent individuals from reading or altering data in an unauthorized manner. 