I saw many people's account are hacked any how.My question is how can anyone hack accounts? And how we can protect our accounts? I don't know if this topic should be written here but i really need these answer.
There was a database leak in 2015. My guess is most of these hacks are related to this database leak.
You can also take consideration of the phishing sites. When you look for bitcoinTalk on google, it pulls up few phishing sites who wants the credentials of your bitcoinTalk account. So phishing sites are another way of getting hacks.
On the forum people will PM you with phishing link. Once you visit the page it will tell you to login again in your BitcoinTalk account. Innocent, ignorant people types their credentials and give it away to the scammers.
The reason all these happens is because, a bitcoinTalk account with a good rank worth good money. The account can be used to earn money from the signature campaigns. It's not much but for some people it is a handsome amount of money. Bottom line is: BitcoinTalk accounts get hacked because there are money in there.
Always use a strong password for you account.
Use an email which is not publicly known to others (better option is to use a fresh email address and do not use this email address for any other web account)
Make sure the password of the email address is very strong too.
Before login to bitcoinTalk, check the URL is correct: BitcoinTalk.org (always check the url)