Trezor Data Breach Phishing

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Multiple users of the Trezor hardware wallet had their email addresses compromised, and the phishing attacker sent out a realistic, typo-free, and well planned attack complete with an altered version of the application, which requested their seed phrase. While the total value of the loss hasn't been publicized, at least one user was found who was reported to have entered the seed phrase and lost significant funds. There is no evidence that any funds will be recovered.

This is a global/international case not involving a specific country.[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]

About Trezor

"Trezor (or Trezor device) is the original and most trusted cryptocurrency hardware wallet designed and marketed by SatoshiLabs." "The safe place for your coins." "Store your coins with Trezor."

"The primary function of Trezor is to serve as a hardware wallet for cryptocurrencies. In addition to its primary function, it has many other security applications, such as password management and second-factor authentication." "Hardware wallet is the safest way to manage & trade your cryptocurrencies." "Online exchanges and wallet providers can disappear, go offline, be hacked. They are not reliable. Go offline. Store your coins with Trezor. Hardware wallet is the safest way to manage & trade your cryptocurrencies."

"The first generation of Trezor, first released on 29 July 2014, is currently known as Trezor One. The next-generation device is called Trezor Model T and was released on 26 February 2018."

"The Mailchimp security team disclosed that a malicious actor accessed an internal tool used by customer-facing teams for customer support and account administration. The bad actor gained access to this tool as a result of a successful social engineering attack on Mailchimp employees."

"Trezor wallet owners did not have a good Sunday morning after the hardware wallet provider revealed that some of its users were the target of a phishing attack over the weekend. On April 3, Crypto Twitter was filled with community warnings about an ongoing email phishing campaign targeting Trezor users via their registered email addresses."

"Very convincing Trezor phishing scam being sent from Most likely leaked emails from HubSpot breach or other crypto-adjacent lists."

"Asks you to download latest Trezor software suite to address the security condition."

"Unauthorized actors have attempted to contact Trezor users posing as the firm to scam unaware users out of their investments. Users received an email about downloading an app from a similar domain called ‘’ instead of the official Trezor domain name, ‘’"

"We regret to inform you that Trezor has experienced a security incident involving data belonging to 106,856 of our customers, and that the wallet associated with your email address is within those affected by the breach."

"Namely, on Saturday, April 2nd, 2022, our security team discovered that one of the Trezor Suite administrative servers had been accessed by an unauthorized malicious actor." "At the moment, it's technically impossible to accurately assess the scope of the data breach. Due to these circumstances, if you've recently accessed your wallet using Trezor Suite, we must assume that your cryptocurrency assets are at risk of being stolen."

"In the spirit of transparency, we wanted to make our customers aware of this incident before malicious actors could utilize this information to their detriment. We felt time was of the essence, and we are expediently working through our investigation."

"If you're receiving this e-mail, it's because you've been affected by the breach. In order to protect your assets, please download the latest version of Trezor Suite and follow the instructions to set up a new PIN for your wallet."

"When you click on the link in the phishing email you are directed to download a Trezor Suite lookalike app, that will ask you to connect your wallet and enter your seed. The seed is compromised once you enter it into the app, and your funds will then be immediately transferred to the attackers wallet."

"This attack is exceptional in its sophistication and was clearly planned to a high level of detail. The phishing application is a cloned version of Trezor Suite with very realistic functionality, and also included a web version of the app."

"Wow, @Trezor, this is the best phishing attempt I have seen in the last few years. I am really lucky I don't have Trezor, because if I had, I would probably actually download that update."

"For this attack to be successful, users had to install the malicious software on their devices, at which point their operating system should identify that the software comes from an unknown source. This warning should not be ignored, all official software is digitally signed by SatoshiLabs."

"I happen to have clicked on the update and upon checking my wallet balance afterward, I realized both my bitcoin and Ethereum in the account were sent to unknown addresses in a space of 4 minutes interval."

"Can someone please advise me on what best to do now and if I can ever be able to recover my coins? All suggestions will be appreciated as it is a substantial amount."

“We immediately took steps to disable phishing sites and are taking further steps to stop the continuation of this phishing attack.” — Tomáš Sušánka, CTO of Trezor.

"Cryptocurrency hardware wallet provider Trezor has begun formally investigating a possible data breach that has affected numerous users and may have compromised their personal information." "Trezor initially suspected that the compromised email addresses belonged to a list of users who opted-in for newsletters hosted on an American email marketing service provider Mailchimp."

"The firm has begun investigating the data breach and has confirmed that its service has been compromised by ‘an insider targeting crypto companies.’ As the firm officially investigates the total number of stolen email addresses, they have advised users not to click on links coming from unofficial sources until further notice."

"With this recent leak of personal information, Trezor users can expect an uptick in both the number of phishing attempts and their level of complexity. Some customers may even be the target of multiple “scareware” attacks, where threat actors use the compromised information to generate shock and anxiety in their targets, as to more easily manipulate them."

"Migliaccio & Rathod LLP is currently investigating Trezor Company s.r.o, a hardware cryptocurrency wallet maker, for failing to adequately safeguard consumer information, resulting in a data breach. Initially reported on numerous cryptocurrency forums in March of 2022, the data breach involved the exposure of users’ email addresses who had subscribed to the company’s newsletter through the data processing company MailChimp."

"Trezor customer order data is purged after 90 days. The data contained in this leak originates from a separate database secured by a third party."

"We are actively warning customers about the ongoing phishing attacks, having published warnings on our website and social media, and also within the Trezor Suite app. Please help us spread the word and minimize the harm these scammers cause."

"We have already taken down many of the malicious sites associated with today’s attack. The team is working around the clock to bring the phishing sites down as soon as possible."

"While Trezor makes an try to determine the idea cause for the state of affairs with an official investigation, prospects are instructed to not click on on on hyperlinks coming from unofficial sources until extra uncover." "The only reason to worry about your funds is if you entered your seed into the malicious app. Your device can not be compromised or affected by this attack without explicitly typing your seed into your computer. Never enter your seed anywhere unless your Trezor device tells you to!"

This is a global/international case not involving a specific country.

The background of the exchange platform, service, or individuals involved, as it would have been seen or understood at the time of the events.


  • Known history of when and how the service was started.
  • What problems does the company or service claim to solve?
  • What marketing materials were used by the firm or business?
  • Audits performed, and excerpts that may have been included.
  • Business registration documents shown (fake or legitimate).
  • How were people recruited to participate?
  • Public warnings and announcements prior to the event.

Don't Include:

  • Any wording which directly states or implies that the business is/was illegitimate, or that a vulnerability existed.
  • Anything that wasn't reasonably knowable at the time of the event.

There could be more than one section here. If the same platform is involved with multiple incidents, then it can be linked to a main article page.

The Reality

This sections is included if a case involved deception or information that was unknown at the time. Examples include:

  • When the service was actually started (if different than the "official story").
  • Who actually ran a service and their own personal history.
  • How the service was structured behind the scenes. (For example, there was no "trading bot".)
  • Details of what audits reported and how vulnerabilities were missed during auditing.

What Happened

The specific events of the loss and how it came about. What actually happened to cause the loss and some of the events leading up to it.

Key Event Timeline - Trezor Data Breach Phishing
Date Event Description
April 2nd, 2022 5:32:42 PM MDT Main Event Expand this into a brief description of what happened and the impact. If multiple lines are necessary, add them here.

Technical Details

This section includes specific detailed technical analysis of any security breaches which happened. What specific software vulnerabilities contributed to the problem and how were they exploited?

Total Amount Lost

The total amount lost is unknown.

How much was lost and how was it calculated? If there are conflicting reports, which are accurate and where does the discrepancy lie?

Immediate Reactions

How did the various parties involved (firm, platform, management, and/or affected individual(s)) deal with the events? Were services shut down? Were announcements made? Were groups formed?

Ultimate Outcome

What was the end result? Was any investigation done? Were any individuals prosecuted? Was there a lawsuit? Was any tracing done?

Total Amount Recovered

There do not appear to have been any funds recovered in this case.

What funds were recovered? What funds were reimbursed for those affected users?

Ongoing Developments

What parts of this case are still remaining to be concluded?

General Prevention Policies

Trezor put together a number of tips, but the largest tip is that hardware wallet users should never be entering their seed phrase anywhere except as instructed on the screen of the hardware device itself.

Individual Prevention Policies

No specific policies for individual prevention have yet been identified in this case.

For the full list of how to protect your funds as an individual, check our Prevention Policies for Individuals guide.

Platform Prevention Policies

Policies for platforms to take to prevent this situation have not yet been selected in this case.

For the full list of how to protect your funds as a financial service, check our Prevention Policies for Platforms guide.

Regulatory Prevention Policies

No specific regulatory policies have yet been identified in this case.

For the full list of regulatory policies that can prevent loss, check our Prevention Policies for Regulators guide.