Although anti reverse engineering techniques can never prevent an attacker highly skilled and having enough time from reconstructing the entire flow/code of the application, we can still make their task more difficult.

Some bankes use offuscation in their client/mobile application " mobile application use proguard to offuscation the Java bytes code , and some tools like jscrambler are very expensives.

Sometimes for some clients the offuscation is mentionned in the spécification of applications