By Alun John, Amanda Cooper, Hannah Lang LONDON (Reuters) -Bitcoin dropped below $90,000 to its lowest since November 18 on Tuesday, as market nerves over U.S. tariffs reinforced the blow to crypto investor confidence from last week's $1.

Following the revelation Friday from cryptocurrency exchange firm Bybit that hackers stole digital tokens worth about $1.5 billion – in what may be the biggest crypto heist of all time – CEO Ben Zhou wrote on X Sunday that it has replenished its reserves. Bybit was able to do this through a mix of emergency loans and large deposits.

Some $1.5 billion in crypto was stolen from the Bybit exchange - sparking fear across the crypto-verse. This was the biggest crypto theft since $611 million vanished from Poly Net

Bitcoin headed for its biggest one-day drop since August on Tuesday, driven by nervousness over U.S. tariffs and results from Nvidia, as last week's hack of $1.5 billion worth of ether from the Bybit exchange delivered a blow to investor confidence.

Despite this being the biggest heist in crypto’s history, Zhou noted the company remains solvent and is under no existential threat, and commended the industry’s big players,

Bybit Faces Unprecedented Industry Response A major cryptocurrency exchange, Bybit, has suffered a massive security breach, leading to the theft of approximately $1.5 billion worth of Ethereum. The incident took place late Friday evening when hackers exploited a routine transfer of funds from a secure offline wallet to a daily-use wallet.