Trezor investigates potential data breach as users cite phishing attacks
As part of the attack, users received an email about downloading an app from the “trezor.us” domain, which is different from the official Trezor domain name, “trezor.io.”

Cryptocurrency hardware wallet provider Trezor has begun investigating a possible data breach that may have compromised users’ email addresses and other personal information.

Earlier on Sunday, several users from the Crypto Twitter community warned about an ongoing email phishing campaign specifically targeting Trezor users via their registered email addresses. In the ongoing attack, several Trezor users have been contacted by unauthorized actors posing as the company — with the ultimate intention to steal funds by misleading unwary investors. As part of the attack, users received an email about downloading an application from the “trezor.us” domain, which is different from the official Trezor domain name, “trezor.io.”

Trezor initially suspected that the compromised email addresses belong to a list of users who opted-in for newsletters, which was hosted on an American email marketing service provider Mailchimp.

Through further investigation, Trezor announced:

“MailChimp have confirmed that their service has been compromised by an insider targeting crypto companies.”

While Trezor officially investigates to identify the total number of stolen email addresses, users are advised not to click on links coming from unofficial sources until further notice.


Bitcoin network difficulty reaches all-time high as miners pursue 2M BTC
With just 2 million BTC left to mine, the BTC network grows strong as miners continue to support the thriving community.

Just when the Bitcoin (BTC) miners helped release the 19th millionth BTC in circulation on Friday, the BTC network’s mining difficulty reciprocated by reaching an all-time high of 28.587 trillion.

Bitcoin’s network difficulty correlates to the computational power required to mine BTC blocks, which currently demands an estimated hash rate of 201.84 exahash per second (EH/s), according to data from Blockchain.com.

Bitcoin network difficulty. Source: Blockchain.com

Supporting the spike in the network difficulty, Bitcoin’s hash rate maintained a stronghold throughout the year while breaking into an all-time high of 248.11 EH/s on Feb. 13.

Bitcoin hash rate over the past three years. Source: Blockchain.com

A higher hash rate ensures resilience against double-spending attacks, which is the process of reversing BTC transactions over the blockchain by contributing to at least 51% of the Bitcoin hash rate.

Back on March 4, roughly a month before reaching an all-time high, the BTC network difficulty experienced a slight decline from 27.96 trillion to 27.55 trillion, which eventually fell to 27.45 trillion until Wednesday. Prior to that, the resilient Bitcoin network grew consistently since July 2021.

With just 2 million BTC left to mine as rewards and an influx of Bitcoin miners from across the world, the BTC network is expected to increasingly grow stronger as it supports the thriving community. it is estimated that the remaining 2 million BTC (out of the total supply of 21 million) will be eventually mined roughly by the year 2140 owing to factors including halving.


SEC rejects ARK 21Shares spot Bitcoin ETF application
The SEC rejected a proposed rule change from the Chicago Board Options Exchange BZX Exchange to list and trade shares of the ARK 21Shares Bitcoin exchange-traded fund.

The United States Securities and Exchange Commission, or SEC, has officially disapproved the application for the ARK 21Shares Bitcoin exchange-traded fund (ETF).

In a Thursday filing, the SEC rejected a proposed rule change from the Chicago Board Options Exchange, or Cboe, BZX Exchange to list and trade shares of the ARK 21Shares Bitcoin (BTC) ETF. The SEC said the proposed rule change, originally published for comment in the Federal Register in August 2021, would not be “‘designed to prevent fraudulent and manipulative acts and practices” nor “protect investors and the public interest.”

The SEC said that the Cboe BZX Exchange had not met the requirements of listing a financial product under its rules of practice as well as those of the Exchange Act. Under these restrictions, exchanges seeking to list a Bitcoin ETF need to have “a comprehensive surveillance-sharing agreement with a regulated market of significant size related to the underlying or reference Bitcoin assets.”

21Shares, a Europe-based exchange-traded product issuer, submitted the spot Bitcoin ETF application with Ark Investment Management in June 2021 for listing on the Cboe BZX Exchange under the ticker ARKB. The SEC had 180 days to reach a decision or open the offering to public comment. In January 2022, the regulatory body extended its deliberation window to April.

To date, the SEC has not approved any spot crypto ETF application for listing shares in the United States but has given the green light to investment vehicles linked to BTC futures, including offerings from ProShares, VanEck and Valkyrie. As of October 2021, 21Shares was one of the largest institutional crypto product issuers, with more than $2 billion in assets under management reported.


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