●Bybit mitigated more than $1.3 billion in FAKE deposit attacks on DOT without any loss of user funds

●The attackers attempted complex batched & multi-step transactions to simulate deposits, but these were halted by Bybit’s advanced ML-based multilayer security system.

Bybit Thwarts Coordinated Fake Deposit Attacks

Bybit has announced that it successfully intercepted an elaborate fake deposit attack, which could have cost the exchange upwards of $1.3 billion in Polkadot (DOT). User funds flowed as usual, the exchange confirmed, since its threat was neutralized in real time. The attackers intended to cheat the deposit system into believing that legitimate transactions were in progress. They aimed to manipulate the platform such that accounts were credited without any authentic increase in balance. If successful, these tactics could have allowed malicious actors to withdraw real assets against fictitious deposits. The exchange explained that the attacks were highly coordinated and cross multiple blockchain networks. At an early stage, Bybit’s internal monitoring systems detected unusual transaction patterns and associated actions within its security infrastructure to prevent any potential damage.

NEWS: @Bybit_Official, the world’s second-largest crypto exchange by trading volume, has detected and blocked coordinated fake deposit attacks across multiple blockchains, preventing over $1B in potential DOT losses with no user funds affected.

The attacks used batch and… pic.twitter.com/iL6yZ9Qf9c

— SolanaFloor (@SolanaFloor) April 8, 2026

Robust Security Systems Avoid Possible Losses

The attack strategy had batched and multi-step transaction flows intended to bypass standard verification paths. Attackers attempted to exploit weaknesses in traditional transaction validation methods by creating fake deposit confirmations through a series of transactions. Bybit’s multi-layer security system, however, successfully detected these irregularities. The platform used sophisticated validation mechanisms that were able to identify the owner of each transaction and confirm which funds were credited against what was present on-chain. This technique is especially important for account-based blockchain models like Solana, where the transaction structure can become very complex.

This development occurs against the backdrop of challenges faced by the exchange. In February 2025, Bybit experienced a serious security breach, which resulted in the loss of roughly $1.5 billion. The recent attack on Everex, alongside the $280 million breach involving Drift Protocol, highlights the growing complexity of cyberattacks in the cryptocurrency industry. The security architecture of Bybit has evolved through substantial progress, which enables the platform to handle large-scale attacks that use dangerous new exploit methods. The exchange confirmed that its real-time detection systems, together with its multiple validation methods, successfully prevented the attack from escalating beyond its initial stage. Digital asset exchanges face growing security challenges because cyber threats have developed into more advanced forms of attacks. Bybit has shown its commitment to building secure systems through its latest response, which protects user assets and boosts trust in centralized trading platforms.

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