Top 3 btc Mining pools hold more than 50% of the hash rate - could a single entity take over the btc network when simultaneously hacking these pools as each has the same software within the the pool?

Thinking about the security of pow networks that is generally perceived as very strong. I came across one issue though on which I do not find info on.

Top 3 btc Mining pools hold more than 50% of the hash rate - could a single entity take over the btc network when simultaneously & successfully hacking these pools as - at least according to my understanding - each pool relies on the same software within the the pool?

Issue is especially relevant in the context of increasing cyber security threads :

Hope someone here can shed some light on this topic!

Source:

https://miningpools.com/bitcoin/