Bitcoin is not hack able. Because it is a currency. But it's wallet is hack able. But if you secure it properly it is safe. so I say you must secure it properly.

It is a small theoretical chance the cryptography behind Bitcoin can be broken at some point in the future. Previously broken cryptos had been attacked/weakened severely before broken, so I am confident we have time to adjust before any problems. In addition, if ECDSA or SHA is taken down there is a lot bigger fish than bitcoin they will attack before us.

Bitcoin is not hackable only if somebody will have 51% power hashrate of mining but i think its impossible in our time .

OK to answer your question there are 2 things you need to think

bitcoin itself is hard to hack or to breach in its security systems because of its technology and the encryption use that makes almost impossible for humans to solve the math
now when hacking bitcoin there are ways but not the bitcoin system but thee bitcoin wallets.
instead of hacking the bitcoin system hackers see the potential of bitcoins in the market and to the financial system bitcoin has a great value that hackers wants so instead of hacking the bitcoin system they hack bitcoin wallets to get all bitcoin inside of that wallet in that way they can have more use in the things they can get.

so to conclude bitcoin system is hard to hack I am not saying it's unhackable because no system is safe
and hackers often hack bitcoin wallets than bitcoin system

What is Bitakayena? What Bitakayena means? You mean Bitakayena is bitcoin. Moreover.  Bitcoin can’t hack the only hackable is the wallets. Like Coinbase, Xapo, and others. With the help of the blockchain technology, it’s too hard to hack the bitcoin. The different wallets can provide the security the 2RF code the 12 words of the blockchain wallet, but in the end, the safety of the bitcoin is on your hard. If you tell your wallets info to others or you are the careless person I sure you can be a hack.

It depends on the website you are using. There are only few websites that are legit, safe and not hack-able. So just be very careful and always check the websites and people you trust.

for sure it is hackable if anyone has knowledge of hacking phones or emails id passwords

All hack in possible, if hacker know that your security. But bitcoin hack is something difficult. Hacker always call to you,mail,and phone. It's depends for your technology knowledge. I know you do it use us many site.if you will login the same mail and same password with your bitcoin then hacker try it.so you have safety always and your mind.

Nope its extremely resistant. At least until quantum computers improve and even then it will probably take them years to break the code.

I think the security of bitcoin is good and it will be very hard to crack, usually nowadays no one can fabricate bitcoin, which I know hackers usually only attack exchange instead of bitcoin, like never happened before in japan