Keystone Releases Nexus App Security Update
The 1.3.7 version follows a cyberattack that temporarily disrupted some Nexus App services, with the iOS release still awaiting App Store review.
Updated on Nov. 8, 2026 in Cybersecurity
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Keystone has released version 1.3.7 of the Nexus App with security updates after a cyberattack disrupted some services and temporarily prevented some users from using the app. The update is available on Google Play, while the iOS release is awaiting App Store review.
Why it matters
The cyberattack interrupted access for some users of a hardware wallet maker's app, making the security fixes and the status of the iOS release relevant to people who rely on it. Keystone's current investigation has found no evidence that user assets or personal information were affected.
Version 1.3.7 is the Nexus App release now available on Google Play, while the iOS version has not yet cleared App Store review. Keystone's investigation has found no evidence that user assets or personal information were affected, though the full scope of the cyberattack has not been detailed.
The players
Keystone
Keystone is a hardware wallet maker that develops the Nexus App and has responded to the cyberattack by strengthening its server protections.
The details
Keystone strengthened server protections in response to the cyberattack, and the 1.3.7 update adds further security measures. Until the iOS version is available, users can sign transactions with third-party wallets supported by Keystone.
Timeline
Article on the Nexus App security update published November 8, 2026.
Tech Race
Hardware wallets like Keystone's depend on companion apps to sign transactions, so a disruption to those apps can leave users unable to access funds through the primary channel. Keystone's fallback to third-party wallet support shows how the industry is handling these interruptions while security fixes are rolled out.
Users who cannot access the Nexus App can sign transactions with third-party wallets supported by Keystone until the iOS version clears App Store review. Android users can download version 1.3.7 from Google Play to get the latest security measures.
The takeaway
Keeping companion apps updated is one of the most direct ways users can protect access to their hardware wallets after a security incident. Check for the latest version in your app store and confirm which third-party wallets are supported during any outage.
Further reading
Explore more on Cybersecurity to see how companies respond to attacks on the apps and devices users depend on.
Source note: This article includes information reported by TokenPost.
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