{"id":43193,"date":"2025-08-20T15:16:32","date_gmt":"2025-08-20T15:16:32","guid":{"rendered":"https:\/\/dogewisperer.com\/?p=43193"},"modified":"2025-08-20T15:16:32","modified_gmt":"2025-08-20T15:16:32","slug":"monero-eyes-detective-mining-defense-after-qubic-attack","status":"publish","type":"post","link":"https:\/\/dogewisperer.com\/?p=43193","title":{"rendered":"Monero Eyes \u2018Detective Mining\u2019 Defense After Qubic Attack"},"content":{"rendered":"
\n

Monero (XMR) developers and pool operators are weighing a swift, software-level response to last week\u2019s hashrate shock after the Qubic mining pool claimed it had briefly dominated the network and triggered a six-block reorganization. Former Monero lead maintainer Riccardo Spagni proposed deploying \u201cdetective mining,\u201d a pool-side strategy he says can neutralize selfish-mining attacks without a hard fork. \u201cA proposal to make Monero completely resilient to selfish-mining attacks, no protocol changes needed,\u201d Spagni wrote, linking to a new Monero Research Lab issue that outlines the approach.<\/p>\n

Qubic\u2019s campaign culminated on Aug. 12 with public statements<\/a> that it had surpassed 51% of Monero\u2019s hashrate and \u201csuccessfully reorganiz[ed] the blockchain,\u201d part of what the project billed as a live \u201c51% takeover demo.\u201d Qubic itself characterized its method as \u201cselfish mining,\u201d a tactic that can win outsized rewards with as little as \u201c33\u201340%\u201d of hashrate, not necessarily a full majority.<\/p>\n

Risk controls kicked in across the industry. Kraken posted a status notice<\/a> in mid-August that it had paused XMR deposits \u201cafter detecting that a single mining pool has gained more than 50% of the network\u2019s total hashing power,\u201d keeping trading and withdrawals open while it monitored network integrity. The pause underscored how even short-lived reorganizations\u2014Monero targets two-minute blocks, making six blocks roughly twelve minutes\u2014can force exchanges to reassess confirmation policies.<\/p>\n

Not everyone accepted Qubic\u2019s framing<\/a>. Analysts at the RIAT Institute argued \u201cno 51% attack has happened,\u201d citing data suggesting Qubic\u2019s peak contributed far less than a true majority and noting that a six-block reorg is insufficient proof of sustained control capable of reversing fully confirmed transactions.<\/p>\n

Detective Mining Could Shield Monero<\/h2>\n

Spagni\u2019s \u201cdetective mining\u201d proposal<\/a> seeks to collapse the advantage of any pool attempting selfish mining by exploiting information already exposed in pool job messages. In pooled mining, Stratum job payloads include the previous block hash (\u201cprevhash\u201d). A detective miner (or a pool running a \u201csensor\u201d proxy) subscribes to competing pools\u2019 job streams; when a leaked prevhash doesn\u2019t match the public tip, the pool immediately builds and broadcasts a valid child on top of the attacker\u2019s hidden parent, forcing the selfish miner to reveal or lose its private lead. Because this operates entirely at the pool\/Stratum-proxy layer, it requires \u201cno consensus or protocol changes,\u201d making it deployable on today\u2019s Monero stack.<\/p>\n

The economics are the point. Spagni\u2019s summary of the underlying Lee\u2013Kim model (2019) claims that if roughly half of network hashrate (i.e., the largest pools) adopt detective mining, the selfish miner\u2019s break-even threshold jumps into the ~32\u201342% range depending on tie-breaking assumptions\u2014eroding the attack\u2019s profitability and, with wider adoption, wiping it out across tested splits. That is a materially higher hurdle than the classical Eyal\u2013Sirer result, under which selfish mining can be profitable around one-quarter to one-third of hashrate.<\/p>\n

Spagni\u2019s issue also anticipates adversarial counter-moves. It recommends quorum-based detection from multiple sensors, short \u201cgrace windows\u201d before diverting hashrate, and share-submission checks to defeat decoy jobs\u2014all with rate limits and telemetry to tune false-positive risk. These are pragmatic pool-operator playbooks rather than protocol-level rules, aligning with Monero\u2019s preference to harden incentives and operations before touching consensus.<\/p>\n

For Monero, the next steps will be social as much as technical: major pools would need to ship and enable detective-mining logic for the defense to bite at the modeled thresholds. As of Aug. 19, the idea is a public proposal under active discussion rather than an adopted standard. But after a week in which a single pool\u2019s campaign produced a measurable reorg and exchange-level mitigations, the path of least friction\u2014pool software updates that raise the cost of selfish mining\u2014has quickly become the center of gravity for the project\u2019s short-term response.<\/p>\n

At press time, XMR traded at $268.<\/p>\n

\"Monero<\/div>\n","protected":false},"excerpt":{"rendered":"

Monero (XMR) developers and pool operators are weighing a swift, software-level response to last week\u2019s hashrate shock after the Qubic mining pool claimed it had briefly dominated the network and triggered a six-block reorganization. Former Monero lead maintainer Riccardo Spagni proposed deploying \u201cdetective mining,\u201d a pool-side strategy he says can neutralize selfish-mining attacks without a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":0,"footnotes":""},"categories":[2],"tags":[3,4,5],"class_list":["post-43193","post","type-post","status-publish","format-standard","hentry","category-news","tag-crypto","tag-doge","tag-news"],"_links":{"self":[{"href":"https:\/\/dogewisperer.com\/index.php?rest_route=\/wp\/v2\/posts\/43193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dogewisperer.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dogewisperer.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dogewisperer.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dogewisperer.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=43193"}],"version-history":[{"count":0,"href":"https:\/\/dogewisperer.com\/index.php?rest_route=\/wp\/v2\/posts\/43193\/revisions"}],"wp:attachment":[{"href":"https:\/\/dogewisperer.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=43193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dogewisperer.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dogewisperer.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}