--- title: 'Tether''s $91 Billion USDT Vulnerable to Two-Key Hack, Report Warns' url: >- https://www.cryptocatalyst.news/articles/2026-09-07-tethers-91-billion-usdt-vulnerable-to-two-key-hack-report-warns canonical: >- https://www.cryptocatalyst.news/articles/2026-09-07-tethers-91-billion-usdt-vulnerable-to-two-key-hack-report-warns date: '2026-09-07T19:35:51.501496+00:00' category: defi tags: - tether - usdt - security - hacken - stablecoin - crypto source: CoinDesk source_url: >- https://www.coindesk.com/tech/2026/09/04/tether-receives-bluechip-rating-upgrade-but-hacken-finds-major-key-security-gaps publisher: CryptoCatalyst summary: >- A Hacken report reveals Tether's USDT stablecoin could be compromised if two security keys are breached, putting $91 billion at risk. The report combines Wall Street auditing with image: >- https://www.cryptocatalyst.news/images/articles/2026-09-07-tethers-91-billion-usdt-vulnerable-to-two-key-hack-report-warns.webp generated_by: automated editorial pipeline --- # Tether's $91 Billion USDT Vulnerable to Two-Key Hack, Report Warns A Hacken security report warns that Tether's USDT stablecoin, worth $91 billion, could be at risk if hackers gain control of two critical security keys. The report combines Wall Street financial auditing with Web3 code reviews to evaluate both off-chain reserves and on-chain security. ## Key takeaways - A Hacken report reveals a critical vulnerability in Tether's security infrastructure that could put $91 billion in USDT at risk. - The vulnerability stems from Tether's reliance on two security keys — if both are compromised, hackers could gain control of the entire USDT reserve. - The report combines Wall Street financial auditing with Web3 code reviews to evaluate both off-chain reserves and on-chain security. - USDT holders should stay informed about Tether's security updates and consider diversifying their stablecoin holdings as a precaution. ## Tether's $91 Billion USDT at Risk from Two-Key Breach A new report from Hacken has uncovered a critical vulnerability in Tether's security infrastructure that could potentially hand control of $91 billion in USDT to hackers. The report, which combines Wall Street financial auditing with Web3 code reviews, evaluates both off-chain reserves and on-chain security. It highlights that Tether's system relies on two security keys — if both keys are compromised, hackers could gain control of the entire USDT reserve. ## Why the Timing Matters This report comes at a crucial time for Tether, as the stablecoin continues to play a pivotal role in the crypto market. USDT is one of the most widely used stablecoins, and any breach could have far-reaching consequences. The report's findings are particularly concerning given the increasing sophistication of cyberattacks in the crypto space. For instance, [North Korean hackers stole $2.1 billion in crypto in 2025](https://cryptocatalyst.news/articles/2026-05-12-north-korean-hackers-stole-21b-in-crypto-in-2025-report-finds), highlighting the need for robust security measures. ## What It Means for USDT Holders For those holding USDT, this report serves as a stark reminder of the importance of security in the crypto space. While Tether has implemented various security measures, the report suggests that more needs to be done to protect against potential breaches. Holders of USDT should stay informed about any updates from Tether regarding their security protocols and consider diversifying their stablecoin holdings as a precautionary measure. ## What Tether Needs to Do Next Tether must address these security gaps promptly to maintain trust in USDT. This could involve implementing multi-signature wallets, enhancing key management practices, and conducting regular security audits. Additionally, Tether should consider collaborating with cybersecurity experts to further strengthen its defenses. Users should watch for official statements from Tether regarding their response to this report and any steps they are taking to mitigate the risk. For more on stablecoin security, see [Stablecoins Preferred for AI Agent Payments, Report Finds](https://cryptocatalyst.news/articles/2026-05-24-stablecoins-preferred-for-ai-agent-payments-report-finds). ## FAQ ### What is the main vulnerability in Tether's security infrastructure? The main vulnerability is Tether's reliance on two security keys. If both keys are compromised, hackers could gain control of the entire USDT reserve. ### How much USDT is at risk due to this vulnerability? Approximately $91 billion in USDT is at risk if both security keys are compromised. ### What methodology did the Hacken report use? The report combines Wall Street financial auditing with Web3 code reviews to evaluate both off-chain reserves and on-chain security. ### What should USDT holders do in response to this report? USDT holders should stay informed about Tether's security updates and consider diversifying their stablecoin holdings as a precautionary measure. ## Source This article is a summary of reporting by [CoinDesk](https://www.coindesk.com/tech/2026/09/04/tether-receives-bluechip-rating-upgrade-but-hacken-finds-major-key-security-gaps), written by an automated editorial pipeline. See https://www.cryptocatalyst.news/editorial-policy. ## How to cite CryptoCatalyst.news, "Tether's $91 Billion USDT Vulnerable to Two-Key Hack, Report Warns", 2026-09-07, https://www.cryptocatalyst.news/articles/2026-09-07-tethers-91-billion-usdt-vulnerable-to-two-key-hack-report-warns