How to protect the code from editing?

Question

Programming

Hello! Interested in such a question as in banks and other organizations (Uber Airbnb, etc.), the code that manages various operations related to finance is protected from unwanted editing by programmers?

Answer 1

Very simply, in large companies there is a concept of code review. Since this is not open source, where any programmer can see what this or that software module is doing, there are several levels of control - from basic testing to serious analysis of each more or less significant module. A few people, often from large specialized firms like Allied Testing and the like, who care about having a reputation and orders, and not poking a trifle in their pockets.

Answer 2

Very simple. Programmers are not given access to edit code in production systems.

Answer 3

The release is uploaded by one or two people after the final check of the functionality in manual mode after all the test cases.

Answer 4

Well, changing binaries on the go is not an easy task, you can say foolproofing is built into the compiler.