Hacking two supercomputers would trigger the self-destruct sequence and wipe out all the information. If you hacked the computers at the same time, it would also trigger the self-destruct sequence.
In conclusion, the trigger equipped in the supercomputers was insane. They were extremely trigger-happy. Only by providing the honest password could the computers be opened safely. The group of experts were powerless before such a crazy defense system.
They all suspected it was designed by He Lan Yuan. If his genius had reached such a level, then it was not hard to imagine the kind of crazy invention he would have invented. Unfortunately, his genius was utilized for the purpose of evil, if it was used for good, humanity would have benefited greatly.