In 2022, Internet suspects used a variety of novel forms of hacker attacks and attacks, and more than $2.8 billion in digital currency was stolen last year.

Nearly half of all login passwords stolen in 2022 were stolen in different ways, according to a report from the REKT database of CoinGecko app DeFiyfield. This includes bypassing the whole process of certification, manipulating stock prices, "robbing people" and its appropriate contracts and the use of roads and bridges.

The biggest hacker attack in 2022 was carried out by key management hackers. Sky Mavis, the real estate developer behind the popular online game Axie Infinity, witnessed the Luoning Bridge hacker attack in March, resulting in the withdrawal of $625 million from the bridge between the Luo Ning chain and the Ethernet network.

After that, it is understood that the North Korean hacker organization Lazarus won five private keys, which were used to sign the sale and purchase of five Ronon Network verifier nodes. This is how hackers suck 173600 ETH and 25.5 million USDC off the bridge.

According to CoinGecko, the key management system vulnerability is carried out by an attacker to restrict access to a wallet or account based on a leaked private key, the Internet, or a protective system. As Cointelegraph discussed last year, cross-chain wireless bridge hackers are more popular in 2022, with 65% of funds stolen from this category of attacks alone.

Related: Crypto reduced its January loss by nearly 93% compared with the same period last year.

The second biggest attack in 2022 came in February, when attackers bypassed authentication by forging signatures on the jumper dynamic password bridge before producing login passwords worth $326 million. Jumpers are unable to authenticate the Guardian account, which allows hackers to produce OTP without the collateral they need.

"group robbery" surfaced in August when an unsafe blockchain smart contract on the fragmented financial dynamic password bridge Nomad allowed users unrestricted access to assets. Hundreds of wallets took advantage of this loophole and more than $190 million was sucked away.

The Mngo industry encountered a sales market control in October, when a hacker bought and artificially overvalued Qingmang tokens and won loans from the finance of the project with insufficient loan guarantees. About $116 million was stolen in the lightning loan attack.

Last year, a total of $81 million was stolen from re-entry sexual assault. In such an attack, the attacker uses a malicious intelligence contract to squeeze assets from the target that contains a constant withdrawal instruction.

The oracle bone writing puzzle hacker attack resulted in the theft of 54 million dollars in assets. According to this method, hackers can browse the Oracle text service project and control its price feed network service to apply for unsuccessful enforcement of smart contracts or flash chip loan attacks.

In 2022, fishing attacks are tantamount to stealing 17 million dollars in digital currency. This method was particularly popular between 2017 and 2020, as attackers looted unwitting victims and stole login credentials and private keys according to social development engineering methods.

The February 2023 Oracle attack is by far the biggest hacker in recent years. The hacker well controlled the price of the Alliance Block OTP based on the Oracle script, resulting in a possible theft of $120 million from the agreement.