Optimism tests stake-based gas priority on OP mainnet

Optimism’s OP mainnet has begun a four-week experiment that lets users boost transaction priority by staking at least 100,000 OP, marking the first time its sequencer has deviated from pure gas-fee ordering. Summary OP mainnet is trialing stake-based transaction ordering alongside its existing priority gas auction. Users must stake a minimum of 100,000 OP into…

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Fake Uniswap Website Drains Crypto Wallets as Scammers Pocket $400K

Uniswap accounted for 41% of tracked malicious websites linked to crypto phishing campaigns uncovered by SEAL researchers in March. A fake website impersonating Uniswap is draining funds from multiple crypto wallets. The prominent on-chain analyst, pseudonymously known as “b-block,” warned that the scammers currently control at least $400,000 in stolen assets. Users were urged…

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UK Visa Portal spilled thousands of applicants’ passports and selfies online — and hasn’t fixed the leak

A website called UK Visa Portal is publicly exposing the passports and selfie photos of applicants who signed up and paid the site to obtain a U.K immigration visa, TechCrunch has learned. An anonymous person notified TechCrunch about the security lapse, saying that the website is exposing at least 100,000 documents from people who uploaded…

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Solana privacy layer Umbra eyes $97B token market

Solana privacy protocol Umbra has partnered with Streamflow to launch confidential vesting for the $97 billion token unlock market. Summary Umbra and Streamflow launched confidential vesting that encrypts token unlock schedules, vesting amounts, and recipient addresses on Solana, preventing public front-running of insider allocations. The integration targets the $97 billion crypto token unlock market, where…

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