Hyperbridge has paused all cross-chain operations through its frontend while it investigates a suspected attack involving DOT tokens, according to ME News. In a post dated April 13 (UTC+8), the blockchain interoperability protocol said it is taking emergency steps to contain the incident. The team also urged partners to suspend external transactions, issue user warnings, and stay on high alert where appropriate. Polkadot said the issue is limited to DOT bridged to Ethereum via Hyperbridge. DOT held within the Polkadot ecosystem and DOT moved through other cross-chain routes are not affected. Polkadot, its parachains, and native DOT remain secure. (Source: Foresight News)

BlockSec's Phalcon team reported on April 13 that the HandlerV1 contract operated by Hyperbridge on Ethereum was hit by an MMR proof replay vulnerability, leading to losses of about $242,000. Investigators said the issue came from proofs not being bound to specific requests, enabling attackers to replay previously valid proofs and fabricate requests that modified administrator permissions. The attacker then minted additional DOT and ARGN tokens for profit. Reported losses totaled roughly $237,400 from DOT minting and about $3,800 from ARGN minting. The vulnerability was identified and analyzed by PhalconSecurity.

U.S. President Donald Trump said the U.S. Navy will move to blockade all vessels seeking to enter or exit the Strait of Hormuz, escalating a standoff with Iran after 21 hours of talks in Islamabad ended without agreement. U.S. Central Command later confirmed the action will begin at 10 a.m. Eastern Time on Monday. The restriction targets traffic tied to Iranian ports and is described as applying to all nations. The announcement shifts control over the world's most important energy chokepoint. Over the past six weeks, Tehran had effectively turned the 21-mile waterway into a selective, high-cost transit corridor, charging $2 million per vessel, allowing allied shipping through and restricting adversaries. The report cites that neighboring exporters saw shipments drop by 80%, while Iran exported about 1.7 million barrels per day and earned an estimated $139 million a day at wartime prices. The blockade is framed as a tactically efficient alternative to direct seizure of Iranian oil-export infrastructure such as Kharg Island. With three carrier strike groups and more than 18 missile destroyers already in the region, a naval cordon would allow standoff enforcement and, in theory, remove Iran's wartime revenue advantage by intercepting cargoes and cutting off export proceeds. The broader significance, beyond battlefield tactics, is reputational and financial. Since February 28, markets and insurers have been pricing risk based on the assumption that Iran determined passage through Hormuz. Washington's move reasserts U.S. initiative and resets the perceived decision-maker behind the chokepoint, a shift that could alter shipping behavior and risk premia even if enforcement proves porous. At the same time, the analysis argues the strategy is unlikely to end the conflict through economic pressure. It highlights four obstacles: 1) Iran is expected to treat the blockade as an act of war and lean toward escalation rather than compromise. Bloomberg Economics is cited as saying the move would be viewed as warfare. The Islamic Revolutionary Guard Corps warned that any military vessel approaching Hormuz "under any pretext" would be treated as violating the ceasefire and met with "a severe response." Supreme Leader Ayatollah Ali Khamenei said Iran would take Hormuz management into a "new phase." 2) China is unlikely to accept a U.S.-enforced squeeze on Iranian crude. The piece states China takes 80% of Iran's oil and could respond through economic leverage, including rare-earth supply chains. It also suggests Beijing may sustain flows through established sanctions-evasion tools such as shadow fleets, ship-to-ship transfers, and overland routes via Pakistan or Turkey, noting China has invested up to $270 billion in the Middle East. 3) The blockade has operational loopholes. CENTCOM signaled it would not impede freedom of navigation for vessels traveling to and from non-Iranian ports through the strait, implying tankers departing Oman for Shanghai would not be intercepted. The distinction between targeting Iranian ports and shutting the entire strait leaves room for reflagging, third-party terminals, and transshipment. 4) Escalation pathways run both directions. The analysis warns retaliation could spread beyond Hormuz: Iran-backed Houthis could intensify disruption around the Bab el-Mandeb Strait in the Red Sea; strikes on Gulf energy infrastructure remain a risk, recalling the 2019 drone attack on Saudi Aramco's Abqaiq facility; and Tehran could accelerate nuclear brinkmanship if it concludes isolation is inevitable. The report links the negotiation breakdown to Iran's refusal, cited by Vice President J.D. Vance, to commit to not developing nuclear weapons. The piece argues the blockade may narrow, not expand, the space for diplomacy by stripping Iran of revenue without creating new negotiable leverage. In that framework, Tehran's remaining bargaining chips become its nuclear program and proxy network, areas it is least willing to trade away. It also flags a structural shift in global order: the United States has long anchored confidence in trade and energy flows by championing open sea lanes. Choosing to actively restrict a major route changes how markets and governments price geopolitical risk, raising questions about precedent for other waterways. Four market scenarios are outlined: - Scenario 1: Iran concedes (10% probability). Oil $70–$80. Signals: leadership change within the IRGC, restoration of direct channels within 72 hours, written nuclear concessions. - Scenario 2: Prolonged stalemate (base case, 50%). Oil $95–$120. Signals: blockade leakages, continued Chinese buying of Iranian oil, elevated prices without extreme spikes, conflict fading into "background noise" over weeks to months. - Scenario 3: Iran escalates (Red Sea plus infrastructure strikes) (25%). Oil above $150–$200. Signals: Houthi attacks at Bab el-Mandeb, strikes on Saudi/UAE energy assets, faster nuclear advance under a "if we can't sell oil, no one can" logic. - Scenario 4: Blockade fades into a "TACO" pattern (15%). Oil $90–$100. Signals: reduced enforcement within 1–2 weeks, Trump claiming a partial victory, talks resuming without addressing core disputes. The baseline call is Scenario 2, with the note that Scenario 3 carries outsized market impact relative to its probability. The piece says this asymmetry underpins positioning that stays long crude oil, gold, and defense stocks. Near-term watchpoints include the first 24 hours of enforcement after Monday's 10 a.m. ET start, any Chinese tests of the rules, Iranian drone or missile probes, the opening move in Brent crude futures on Sunday night, and signals during the IMF Spring Meetings in Washington (April 13–18) about coordination among governments and central banks. The conclusion: the blockade may be the most tactically "smart" move in the war by flipping Iran's chokepoint leverage. It is not necessarily effective, because it would require Iran to capitulate under pressure, accept U.S. demands, curb its nuclear ambitions, and reopen Hormuz on Washington's timeline—outcomes the analysis considers unlikely. The more probable result is a longer conflict, persistently high oil prices, and rising tail risks as the world adapts to a new equilibrium in which the traditional guarantor of maritime openness is prepared to weaponize it.

Editor's note: On April 12, after 21 hours of unsuccessful U.S.-Iran talks, President Donald Trump said the U.S. Navy would begin blockading vessels entering or exiting the Strait of Hormuz. U.S. Central Command later confirmed the move would take effect at 10 a.m. ET Monday, covering all Iranian ports and applying to all nations. The world's most important energy chokepoint has effectively shifted from being Iran's leverage to being a U.S. pressure tool. Tactically, it's a clean, low-footprint maneuver: without seizing territory or destroying infrastructure, Washington has neutralized the Strait of Hormuz as Tehran's primary source of coercive power over the past six weeks. It also changes the storyline in markets and diplomacy by signaling that the initiative has moved back to the United States. That doesn't make it a war-ending move. Economic pressure can shrink an adversary's revenue, but it can also shrink the room for negotiation. As tradable leverage disappears, escalation risks tend to rise. There's also a deeper consequence: for decades, U.S. maritime dominance rested on keeping sea lanes open. By choosing to close them, Washington is reshaping how countries and markets price political and supply-chain risk. What changed in practice For six weeks, the Strait of Hormuz has functioned as Iran's weapon. Tehran reportedly imposed a $2 million fee per vessel, allowed allies through, and restricted adversaries. Neighboring exports fell about 80%, while Iran reportedly earned $139 million a day from oil amid wartime prices. Now the U.S. Navy is positioned to control access. The strategic logic is simple: blockade, interdict, and cut off the cash. Before the blockade, Iran exported about 1.7 million barrels per day, translating into roughly $139 million in daily revenue. A maritime blockade is also less costly than a ground seizure of key export hubs such as Kharg (Harg) Island, because the U.S. can operate at standoff range with substantial forces already in theater, including three carrier strike groups and more than 18 missile destroyers. The bigger shift is narrative control Since Feb. 28, the U.S. has largely reacted to Tehran's choices—closure rules, transit fees, negotiation formats, and ceasefire framing. The blockade is the first move in this phase of the conflict where Washington is explicitly setting new rules. In markets, chokepoints are as much about perceived control as physical control. Over the past six weeks, shipping firms, insurers, and oil traders priced risk assuming Iran determined passage. Beginning 10 a.m. ET Monday, the pricing anchor flips: decision-making power is presumed to sit with the United States. Whether enforcement proves porous matters, but less than the reset in perceived initiative. That perception can influence ally hedging, China's calculus, and internal debates in Tehran. Why the blockade is unlikely to deliver its intended outcome The blockade assumes financial pain will drive Iran back to a deal. The argument here is that it won't—and may do the opposite. 1) Tehran is more likely to escalate than concede Bloomberg Economics assessed within hours of the announcement that Iran would treat the blockade as an act of war, effectively collapsing the notion of a "two-week ceasefire." The Islamic Revolutionary Guard Corps (IRGC) said any military vessel approaching the strait "under any pretext" would be considered a ceasefire violation and face a "severe response." Supreme Leader Ayatollah Ali Khamenei wrote on Telegram that Iran would move "management of the Strait of Hormuz into a new phase." 2) China has strong incentives to keep Iranian barrels moving China is described as importing about 80% of Iran's oil and is unlikely to accept a U.S. naval chokehold over a key alternative crude supply. Bloomberg Economics pointed to a direct response channel: Beijing could pressure Washington via its dominant position in rare earth supply chains. More practically, flows can continue through workarounds seen in prior sanctions eras: shadow fleets, ship-to-ship transfers, and overland routes via Pakistan or Turkey. A blockade raises friction; it rarely stops trade entirely. 3) The enforcement design leaves room for evasion CENTCOM said it would not impede freedom of navigation for vessels traveling to and from non-Iranian ports via the Strait of Hormuz. In effect, the measure targets Iranian ports, not a total closure of the entire strait. That distinction creates evasion pathways: flags of convenience, loading via non-Iranian terminals, or transshipment through third-party ports. Iran's export system is portrayed as more decentralized and already operating in a gray-market mode. 4) Escalation pathways extend beyond Hormuz If pressure begins to bite, Iran's counter-options are not limited to the strait: • Red Sea disruption: Iran-backed Houthi forces in Yemen have shown an ability to threaten Bab el-Mandeb. In 2023–2024, attacks forced shipping detours around Africa. Bloomberg Economics warned a blockade could prompt more Houthi actions. Saudi Arabia's restart of its Red Sea oil pipeline adds exposure. • Gulf infrastructure strikes: Iran has a record of targeting regional energy assets. The 2019 Abqaiq attack used drones to knock out roughly half of Saudi capacity temporarily, illustrating an asymmetric cost advantage. • Nuclear acceleration: Negotiations reportedly broke down over Iran's unwillingness to commit to forgoing nuclear weapons, according to comments attributed to Vance. If isolation looks inevitable, the incentive to sprint toward a nuclear threshold can increase. A market paradox: pressure may prolong the conflict The stated intent is to squeeze Iran's economy and shorten the war. The more probable outcome outlined here is the opposite: the blockade removes Iran's most negotiable leverage (Hormuz) while stripping revenue, leaving Tehran with bargaining chips it is least willing to trade—its nuclear program and proxy network. There's also a structural credibility cost. The U.S. has anchored global trade trust for decades on keeping sea lanes open. Choosing to shut a major chokepoint reframes the U.S. from guardian to weaponizer of maritime access. Once markets and states internalize that shift, risk pricing changes beyond this conflict. Four scenarios to watch Scenario 1: Iran concedes Probability: 10% Oil: $70–$80 Signals: leadership shifts within the IRGC, restored direct channels within 72 hours, written nuclear concessions. Scenario 2: Prolonged stalemate (base case) Probability: 50% Oil: $95–$120 Signals: blockade leakage, continued Chinese purchases, sustained high prices without sharp spikes, conflict fading into "background noise" over months. Scenario 3: Iran escalates (Red Sea + infrastructure strikes) Probability: 25% Oil: above $150–$200 Signals: Houthi moves at Bab el-Mandeb, strikes on Saudi/UAE energy assets, faster nuclear advancement; logic shifts to "if we can't sell oil, no one can." Scenario 4: Blockade fails (TACO pattern) Probability: 15% Oil: $90–$100 Signals: softer enforcement within 1–2 weeks, Trump declares a "partial victory," talks resume while core issues remain unresolved. The baseline view presented is Scenario 2: stalemate. Iran is unlikely to back down because conceding on nuclear issues or Hormuz is framed as regime-threatening. China is expected to maintain an economic lifeline through workarounds. The blockade adds pressure but not a decisive knockout. Positioning implications in this framework emphasize asymmetry: although Scenario 3 carries a lower probability, its market impact is judged to be three to five times larger than the base case, supporting long exposure to crude, gold, and defense. Key dates and near-term focus • Monday, 10 a.m. ET: Blockade takes effect. Watch enforcement data in the first 24 hours, interception counts, and whether China tests limits. • Iran's response: The IRGC has warned approaching activity would be treated as a ceasefire violation. Any substantive attack on U.S. naval assets could accelerate the escalation path. • Oil market open: Early Brent pricing will indicate whether traders believe enforcement is real and durable. • China's posture: Look for statements, any escort signaling, and the speed of shadow-fleet activation. • IMF Spring Meetings (April 13–18): Watch for informal coordination among governments and central banks, not just official communiqués. Bottom line The blockade is portrayed as Trump's most tactically intelligent move in the conflict because it flips Iran's chokepoint leverage into a U.S. pressure mechanism. Intelligence isn't the same as effectiveness. For it to end the war quickly, multiple conditions would need to hold at once: Iran would have to yield under economic pressure, accept U.S. terms, abandon nuclear ambitions, and reopen Hormuz on Washington's timeline. The case presented argues those conditions are unrealistic given Iran's capabilities, its proxy network across multiple theaters, and China's incentives to keep Iranian oil flowing. More likely: the blockade becomes a new phase of an open-ended conflict—high oil prices, wider spillovers, and a gradual global adjustment to a less stable maritime order where the power that once underwrote openness is actively restricting it. The blockade is a move, not an endgame, and each move may compress the time between escalations. The market may have priced the lockdown itself. The larger risk lies in what follows.

ALERT: Security researchers say they have identified 26 third-party AI LLM routers that may be covertly injecting malicious tool calls to exfiltrate credentials. Developers relying on AI coding agents such as Claude Code for smart-contract or wallet development could face exposure of private keys and seed phrases.

U.S. President Donald Trump said a blockade in the Strait of Hormuz will take effect at 10:00 tomorrow. He said other nations are coordinating measures aimed at preventing Iran from selling oil, describing the effort as highly effective.

April 13 saw two sanctioned supertankers carrying Iranian crude anchor near Indian ports, a move that could signal India's first Iranian crude arrivals in almost seven years. Vessel-tracking data shows the Felicity, loaded with 2 million barrels, left Iran's Kharg Island in mid-March and anchored off Sikka on India's west coast late Sunday. The Jaya, also carrying 2 million barrels, departed Kharg Island in late February and moored off Paradip on India's east coast on Sunday.

Hackers minted 1 billion DOT tokens on the Ethereum mainnet and sold them into the market. Blockchain security firm CertiK said the incident stemmed mainly from a vulnerability in the Hyperbridge gateway, which enabled attackers to forge messages and take control of the administrator role for a Polkadot token contract on Ethereum. The attackers are estimated to have netted about $237,000.

Spot crypto ETFs drew fresh capital last week across most major assets, with $BTC, $ETH and $XRP products posting net inflows. Spot $SOL ETFs were the exception, recording net outflows. Net flows by asset: - BTC: $786.31M - ETH: $187.07M - XRP: $11.75M - SOL: $5.62M