Trust wallet christmas hack: Cz vows $7m reimbursement after insider-style attack

Trust Wallet will reimburse users for roughly 7 million dollars drained in a Christmas Day compromise of its browser extension, according to Binance co‑founder Changpeng Zhao (CZ). The incident, which primarily affected desktop users, is increasingly being viewed as a likely insider‑enabled attack rather than a traditional external hack.

The breach targeted version 2.68 of the Trust Wallet browser extension. In a public statement, the wallet provider confirmed that this specific release had been compromised and urged users to immediately migrate to version 2.89 or later. Those who continued using the older version after the attack window faced the highest risk, while mobile wallet users were not directly impacted by this particular exploit.

Security researchers say the malicious version of the extension did far more than drain funds. According to blockchain security firm SlowMist, the manipulated software contained backdoor code designed not only to steal assets but also to quietly export sensitive user data to an attacker‑controlled server. Personal information exfiltrated in this way raises the stakes for affected users, turning a financial incident into a broader privacy and identity‑risk event.

Yu Xian, co‑founder of SlowMist, said the attackers began laying the groundwork as early as December 8. By that time, the rogue code had reportedly already been integrated into the extension and was waiting for the right moment to be triggered. This indicates the operation was carefully planned over several weeks, rather than a quick smash‑and‑grab.

On‑chain analyst ZachXBT estimated that “hundreds” of Trust Wallet users lost funds in the exploit, with cumulative losses of about 7 million dollars in various crypto assets. While large by most standards, the figure is modest compared with some of the biggest wallet incidents in recent years. In February 2024, for example, Jeff Zirlin, co‑founder of the play‑to‑earn game Axie Infinity, lost roughly 9.7 million dollars worth of Ether in a suspected wallet compromise.

CZ, whose company Binance owns Trust Wallet, stated that all affected users would be made whole, with the company covering the full 7‑million‑dollar shortfall. The move is intended to both protect victims and limit reputational damage to the wallet brand, which claims it serves around 220 million global users. Compensation in such cases is not guaranteed industry‑wide, so the announcement is being closely watched across the sector.

Industry observers, however, are more focused on how the attack became possible. Several experts suspect that an insider, or someone with elevated access to Trust Wallet’s internal systems or codebase, played a role. One of the red flags: the attacker managed to get a malicious version of the extension submitted and published through the normal release channels. That suggests they either had access credentials, control of a relevant developer account, or detailed knowledge of internal processes.

“This kind of ‘hack’ is not natural. The chances of insider involvement are high,” commented blockchain adviser Anndy Lian, reflecting a sentiment that has quickly spread among analysts. CZ himself conceded that the exploit was “most likely” facilitated from the inside, echoing concerns raised by multiple security professionals.

SlowMist’s Yu Xian underscored that the attacker demonstrated an unusually deep familiarity with the Trust Wallet extension’s source code. This knowledge allowed them to seamlessly introduce a backdoor that blended into existing functionality, making detection significantly more difficult. The malicious changes did not simply redirect transactions; they were crafted to quietly harvest personal data and passphrase‑related information, escalating the level of compromise.

The attack fits into a broader pattern of rising wallet‑level threats across the crypto market. Data from Chainalysis shows that personal wallet compromises accounted for about 37% of the total value stolen from the ecosystem in 2025, once the exceptionally large 1.4‑billion‑dollar Bybit hack from February is excluded from the calculations. As centralized exchanges harden defenses, attackers increasingly pivot toward end users and the tools they rely on day to day, such as browser extensions and mobile wallets.

Although the financial damage in the Trust Wallet case is relatively smaller than some headline‑grabbing events, the incident is notable for what it reveals about the current threat landscape. Supply chain and software‑distribution attacks—where attackers compromise code before it ever reaches users—have become a defining risk. A compromised extension or update can infect thousands of users at once, bypassing many traditional security checks that focus on phishing or social engineering.

For everyday crypto holders, the incident is a reminder that “non‑custodial” does not automatically mean “safe.” While users control their keys, they still rely on software developed, signed, and distributed by third parties. If that software or its update mechanism is infiltrated, even the most cautious user can become a victim without clicking any obvious scam links or revealing their seed phrase.

In response to the breach, Trust Wallet is under pressure to overhaul its security and release processes. Likely areas of focus include stricter multi‑party controls to push code into production, mandatory code reviews by independent security teams, and improved integrity checks on distributed binaries. Enhanced logging and anomaly detection around extension updates will also be critical to prevent or quickly detect similar incidents in the future.

Another key concern is the handling of stolen personal data. Because the compromised extension exported information beyond just private keys and funds, affected users may face additional risks such as targeted phishing, SIM‑swap attempts, or even blackmail. Security specialists recommend that those impacted treat the situation as both a financial and a privacy breach: change passwords, rotate API keys, review connected services, and monitor accounts closely for unusual activity.

The case also highlights the importance of version hygiene and update discipline. Users are often encouraged to keep software up to date, but this incident demonstrates that blindly installing any new release can be risky if the distribution pipeline itself is not trustworthy. A more nuanced approach is emerging: verify that update notices come from official, verified channels; cross‑check version numbers with multiple sources; and watch for abnormal permission requests or behavior after an update.

For institutions and high‑net‑worth users, the attack will likely accelerate interest in hardened wallet setups. These can include multi‑signature schemes, hardware wallets with verifiable firmware, and strict separation between transaction signing devices and general‑purpose browsing environments. Segmenting risk in this way ensures that a compromised extension or computer cannot by itself authorize large withdrawals.

Regulators and policymakers are also watching closely. High‑profile incidents where insiders are suspected of facilitating theft or weakening controls could prompt calls for tighter oversight of wallet developers, including mandatory security audits, clearer accountability for software supply‑chain risks, and more robust disclosure requirements when incidents occur.

From a reputational standpoint, Trust Wallet and Binance now face a dual challenge: compensating victims swiftly and convincingly proving that the root cause has been fully understood and addressed. Users will want transparency around what exactly went wrong, who had access to the compromised code, and what concrete safeguards are being implemented to prevent a repeat.

At the same time, the event is a cautionary tale for the entire crypto industry. Browser extensions are convenient and widely used, but they operate in one of the most hostile environments in computing: the web browser, where scripts, trackers, and third‑party code routinely compete for access to user data. The Trust Wallet exploit is a stark illustration of how powerful and dangerous a compromised extension can be.

Ultimately, the Christmas Day hack underscores a central tension in the crypto world: the desire for self‑custody and control versus the realities of software risk and human error. Even as Trust Wallet moves to reimburse the 7 million dollars stolen, the longer‑term challenge will be rebuilding trust—not just in one product, but in the broader promise that users can safely hold and manage their own digital wealth without constant fear of invisible backdoors.