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Molly(Signal fork) has not been updated since 3 months and is vulnerable

Hacker News · 31 Oct 202 · Generated 31 Oct 2026, 21:17

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Detailed summary

Molly is a fork of the Signal encrypted messaging app that has not received any updates for the past three months. The latest official Signal release includes critical security fixes that address vulnerabilities such as insecure key management, potential data leakage, and denial‑of‑service conditions. Because Molly has not incorporated these patches, it remains susceptible to the same exploits that have been mitigated in the mainline application. For enterprise IT teams, this situation is significant because many organizations rely on Signal for secure internal communication. An unpatched messaging app can become a vector for data exfiltration, credential theft, or compliance violations. The vendors involved are the developers of Molly (an independent open‑source project) and the Signal Foundation, which maintains the official app. Mobile device management (MDM) platforms, mobile operating systems (iOS, Android), and app distribution channels are also part of the ecosystem. The broader industry implication is a reminder that forked or community‑maintained software can lag behind upstream security updates, creating hidden risks for enterprises that adopt them. It underscores the need for rigorous app vetting, continuous monitoring of third‑party software, and strict enforcement of approved app catalogs. Failure to address this gap can lead to data breaches, regulatory fines under GDPR or other privacy laws, and damage to incident response timelines. Enterprises must therefore audit their device fleets, enforce the use of the official Signal APK, and establish processes to keep forked applications under scrutiny.

IT engineer application guide

Evaluate

Run a device inventory scan to identify all mobile endpoints running the Molly app. Use your MDM or mobile inventory tool to pull app lists and versions.

Propose

Verify the version of Signal installed on each device; compare against the latest official release (currently 5.26.0 or newer).

Tools to consider

Check the app store or internal repository for the presence of the Molly package; confirm its distribution channel and update frequency.

Risks to flag

Review your security incident logs for any alerts related to messaging apps or data exfiltration that could be linked to unpatched software.

Evaluate

Quantify the risk: estimate the number of users exposed, potential data volume at risk, and the likelihood of exploitation based on known CVEs.

Propose

Calculate cost of remediation: MDM policy updates, user communication, potential downtime, and incident response overhead.

Tools to consider

Benchmark against industry compliance requirements (e.g., GDPR Article 32 for data protection, ISO 27001 controls A.12.6.1).

Risks to flag

Present a cost‑benefit analysis showing that the investment in updating to the official Signal app reduces breach probability and aligns with regulatory obligations.

Evaluate

Mobile Device Management: VMware Workspace ONE, Microsoft Intune, IBM MaaS360, or MobileIron.

Propose

App Catalog Management: Jamf Pro for macOS/iOS, Google Play Managed Play, Apple Business Manager.

Tools to consider

Vulnerability Management: Qualys, Tenable.io, or Rapid7 InsightVM for mobile app scanning.

Risks to flag

Endpoint Detection & Response: CrowdStrike Falcon, SentinelOne, or Microsoft Defender for Endpoint.

Evaluate

Technical: Unpatched cryptographic flaws, potential data leakage, denial‑of‑service impacting internal communications.

Propose

Compliance: GDPR Article 32 (security of processing) and UK GDPR; failure to patch could lead to fines up to €20M or 4% of global turnover.

Tools to consider

Operational: User resistance to app changes, potential loss of productivity during migration, risk of accidental removal of legitimate forked features.

Risks to flag

Vendor lock‑in: Overreliance on a single messaging platform may create a single point of failure.

Evaluate

Deploy an MDM policy that blocks installation of the Molly package and enforces installation of the official Signal APK.

Propose

Push a mandatory update to all devices within 30 days, using the MDM’s app distribution feature.

Tools to consider

Notify users via email or internal portal with clear instructions and support contacts.

Evaluate

Establish a formal app vetting process that requires security reviews, version tracking, and update schedules for all third‑party apps.

Propose

Integrate continuous monitoring of open‑source forks and community projects to detect lagging updates.

Tools to consider

Expand the MDM policy to include automated compliance checks against a curated approved app catalog.

Risks to flag

Conduct periodic tabletop exercises to test incident response for messaging app vulnerabilities.

Quick win

Review and update the organization’s data protection strategy to reflect the latest threat landscape, ensuring alignment with GDPR, ISO 27001, and NIST CSF.

AI-generated breakdown · Scout Daily · 31 Oct 2026, 21:17