Cardano news

SecondFi, the Cardano wallet formerly known as Yoroi, suffered an exploit that drained 16 million ADA ($2.4 million) from 374 wallets across three attacks. The vulnerability was in its proprietary wallet generation software, triggering when users signed transactions. The team secured 129 million ADA by routing funds to a third-party custodian. However, SlowMist estimates losses could exceed $20 million pending an independent audit. Affected users cannot protect by moving seed phrases and must submit claims to SecondFi.

Cardano advanced its scaling overhaul by launching the Musashi Dojo testnet for the Ouroboros Leios protocol, aiming to boost throughput by 5-20x. Meanwhile, the network is progressing the Van Rossem hard fork, which prepares for future upgrades. However, these technical milestones are overshadowed by ADA's decline to $0.14, a 55% drop this year, and a $2.4 million exploit at wallet provider SecondFi that affected 374 addresses. The incident exposed vulnerabilities in wallet generation code, further eroding user confidence. Despite cautious bullish positioning among traders, the ecosystem faces contractions with projects scaling back. Cardano's next challenge is converting technical progress into renewed developer and user activity to reverse market sentiment.

Cardano-based wallet SecondFi has confirmed a security breach that allowed attackers to drain user funds, identifying the root cause as an address-level issue that exposed private keys when users signed transactions. The platform estimates around 16 million ADA (approximately $2.4 million) was affected across 374 addresses. SecondFi has implemented emergency measures securing roughly 129 million ADA, transferring it to an independent third-party custodian pending user verification. The company advised users not to restore recovery phrases into new Cardano wallets, warning that migration does not mitigate the risk. Cardano founder Charles Hoskinson clarified that SecondFi is not an Input Output Global product, stating IOG had no involvement in the code. The platform, which rebranded from Yoroi wallet in April 2026, was originally developed by Emurgo.

SecondFi, a Cardano project, suffered a security breach due to a vulnerability in its wallet generation software, with losses potentially exceeding $20 million. Estimates range from 16 million ADA, worth around $2.4 million, to over 129 million ADA, valued at nearly $19.4 million, plus additional tokens, according to blockchain security firm SlowMist. The exploit did not compromise Cardano's base protocol. SecondFi is working with an independent security firm on a technical review. The incident adds pressure to ADA, which is trading near five-year lows, and follows a pattern of infrastructure-layer attacks in the crypto space. SecondFi has not yet disclosed a reimbursement plan.

Cardano launched its largest scaling testnet, Leios Musashi Dojo, on June 23, but on-chain data shows minimal impact on network activity. Daily transactions remained flat at around 25,000, and active staking addresses hit a four-month low of 5,000 on June 21, suggesting the upgrade buzz has not drawn users back. Social sentiment remains positive, with optimism outweighing fear by more than two to one, and exchange outflows indicate continued accumulation, though weekly net outflows shrank from $27 million in mid-May to just $4.53 million in late June. The contrast between positive sentiment and thinning buying pressure highlights Cardano's current state, where the Leios upgrade's main net launch is still years away.

Cardano has launched the public testnet for its Leios scaling protocol, named Musashi Dojo, on June 23. The testnet consists of five phases inspired by Miyamoto Musashi's Book of Five Rings. This is the network's most significant technical milestone in years, aimed at increasing throughput from 4.5 KB/s to 200 KB/s. The launch comes amid a bleak market for ADA, which hit a five-year low this month, trading at $0.16, 95% below its all-time high. Earlier this year, analytics platform TapTools shut down, and Cardano canceled its 2026 Singapore Summit. Founder Charles Hoskinson warned of a 'wave of failures' among Cardano DeFi projects. The Leios upgrade, running as an overlay on Ouroboros Praos, was approved with over 84% support from delegated representatives. Input Output targets a November 2026 hard fork. The Cardano 2030 Vision requires scaling from 800,000 monthly transactions to over 27 million, which the current base layer cannot achieve alone.

Cardano founder Charles Hoskinson is doubling down on AI as critical infrastructure for the network's future, particularly as Midnight City development advances. Hoskinson views AI agents as essential for scaling communication, moderation, and outreach as the community grows. Midnight City, running on the Midnight Network, showcases autonomous AI agents that transact and interact with varying levels of data visibility. Hoskinson describes it as a key project integrating AI standards to demonstrate selective disclosure and drive adoption.

Cardano's Ouroboros Leios protocol has reached a significant development milestone with over 5,700 updates and 705,000 lines of code, ahead of a testnet launch scheduled for June 23. Founder Charles Hoskinson described the achievement as something he "could only have dreamed of" when starting the project. Despite a spike in trading volume to $704 million on June 15—the highest in a week—ADA's price remains under pressure, trading at around $0.185, down 2.2% in 24 hours and still 94% below its September 2021 all-time high of $3.09. The upcoming testnet is a critical proof-of-concept for Leios, which aims to boost transaction throughput through parallel block production. A successful launch would be the clearest signal yet that the protocol can deliver on its promises, though the current price action suggests caution among investors.

Cardano (ADA) is trading at a five-year low of around $0.17, down 37% in the past month, despite significant institutional adoption. CME Group launched 24/7 Cardano futures on May 29, and Nasdaq included ADA in its new crypto index on June 8. However, ecosystem troubles persist: analytics platform TapTools shut down after losing key personnel, and Cardano's 2026 Singapore Summit was canceled after a governance vote fell short. Total value locked in Cardano DeFi has plummeted 85% from $905 million to under $140 million. Founder Charles Hoskinson warns more DeFi projects may fail. The Ouroboros Leios testnet is set for June 23, targeting speed improvements.

Cardano's ecosystem health has collapsed, with TVL down 31% in a month and 87% from its peak. Despite this, large whale wallets began accumulating ADA on June 7, coinciding with a probe into the founder and a five-year low price near $0.16. Derivatives data shows top traders are relatively short while retail is heavily long, creating a divergence that often precedes a squeeze. Open interest has dropped 39%, limiting squeeze potential. The accumulation appears to be a setup for exit liquidity: whales buy spot, retail buying pushes price higher, forcing short sellers to cover, allowing whales to sell into the rally. No fundamental catalyst supports a recovery.