$84 Million in Bitcoin Leaves World’s Leading Crypto Exchange as Volume Spikes 37%

Developers behind the Ethereum layer 2 Aztec Network have launched a whistleblowing platform called StealthNote that allows workers to vent about their employer without revealing themselves.StealthNote uses zero-knowledge proofs to prove that posts on its platform are written by someone with access to an email address of the company that they’re reviewing.Aztec Labs developer Saleel Pichen wrote in an April 14 X post that StealthNote creates a zero-knowledge proof of a Google JSON Web Token, which is used to authenticate users and allows the platform to prove a poster owns “an email from a company domain without revealing any personal info.”Two of the latest posts on StealthNote from personnel at Aztec Labs and Cornell University. Source: StealthNote.xyzAccording to Aztec’s documentation, the privacy solution had been in development since at least Oct. 22, while the first test post from Aztec occurred about three months ago.Workers from Ethereum Foundation, StarkWare and Scroll as well as Columbia and Cornell universities have made posts on StealthNote, primarily sharing greetings and voicing their support for privacy solutions.“Let’s make privacy cool again,” a worker from Nim Network wrote.ZK-proofs needed more than ever, says ButerinZK-proofs have become an increasingly used privacy solution in the internet age as concerns over data security and government surveillance continue to grow.The concerns were raised in an April 14 blog post by Ethereum co-creator Vitalik Buterin, who criticized the assumption that governments are generally well-intentioned when it comes to sacrificing privacy for a more “transparent society.” Related: Vitalik Buterin unveils roadmap for Ethereum privacyHe championed ZK-proofs as a solution to mitigate this trade-off, highlighting the technology’s ability to provide “fine-grained control of who can see what information.”Related: Vitalik Buterin unveils roadmap for Ethereum privacyThe privacy-focused Aztec Network launched on Ethereum in February 2020. The firm raised $100 million in Series B funding led by the tech-focused venture capital firm Andreessen “a16z” Horowitz in December 2022, with A Capital and King River also contributing.Magazine: Financial nihilism in crypto is over — It’s time to dream big again

Michael Saylor’s strategy of Bitcoin accumulation is still profitable

The X account of UK Member of Parliament and Leader of the House of Commons, Lucy Powell, was hacked to promote a scam crypto token.In a series of now-deleted posts on April 15, Powell’s X account shared links to a token called the House of Commons Coin (HOC), describing it as “a community driven digital currency.”Source: Daniel GreenA member of Powell’s staff confirmed to the BBC that the account had been hacked and that “steps were taken quickly to secure the account and remove misleading posts.”DEX Screener shows the HOC token saw limited interest from would-be investors, achieving a peak market cap of just over $24,000 shortly after the posts from Powell’s account.The token has seen a total of 736 transactions and a trading volume of just $71,000.While Powell hasn’t promoted a cryptocurrency before, it isn’t unheard of for political figures to back real crypto tokens.US President Donald Trump and First Lady Melania Trump both launched and promoted memecoins days before they entered the White House, sparking criticism from the president’s political rivals and even some supporters.Argentine President Javier Melei also promoted a token called LIBRA, which quickly crashed in value and has caused a political scandal in Argentina and calls for a probe into Melei’s involvement with the token.Powell’s account hack follows similar attack on Ghana’s presidentIn March, the X account of Ghana’s President John Mahama saw a similar breach, with attackers taking over his account for 48 hours to promote a scam cryptocurrency called Solanafrica.The Ghanaian president’s X account was hacked in March 2025. Source: CrediRates Related: UK trade bodies ask government to make crypto a ‘strategic priority’The scammers made similar crypto-promoting posts to Mahama’s 2.4 million followers, claiming that the scam project was “making payments fast and free across the continent with support from Solana and the Bank of Ghana.”After regaining control of the president’s X account, his spokesman Kwakye Ofosu, confirmed to AFP that the account “has now been fully restored, and we urge the public to disregard any suspicious cryptocurrency-related posts from the handle.”Magazine: Memecoin degeneracy is funding groundbreaking anti-aging research