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high severity May 17, 2024 · 3 min read Unverified claim — what this is

Comwave Listed by medusa Ransomware Group

If you are a customer of Comwave, here’s what is being claimed, and what it would mean for you.

Comwave is Canada’s communications company, offering home internet, TV and phone services. Comwave corporate office is located in 61 Wildcat Rd, Toronto, Ontario, M3J 2P5, Canada and has 235 employees. The total amount of data leakage is 274.8 GB

— from Medusa’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
Comwave Listed by medusa Ransomware Group

On May 17, 2024, Canadian telecommunications provider Comwave appeared on the leak site operated by the Medusa ransomware group. The listing states that internal files totaling 274.8 GB were exfiltrated during a ransomware attack. The company, which provides home internet, TV, and phone services to residential customers across Canada, has not yet published a formal breach notification detailing the exact records involved.

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Details from the Medusa Listing

The Medusa leak site entry states that Comwave was hit by a ransomware deployment and that attackers successfully exfiltrated 274.8 GB of internal files before encryption. The disclosure does not specify the precise data types contained in the archive, nor does it list the number of customers or employees whose information was taken. It simply presents the stolen material as proof of compromise and sets an implicit deadline for payment before further publication. The corporate headquarters address at 61 Wildcat Rd, Toronto, Ontario, is also referenced, matching publicly available company information.

Why This Matters for You and Your Family

If you are a Comwave customer, your personal details may sit inside the 274.8 GB archive now controlled by Medusa. Residential internet, television, and voice-service providers routinely store names, service addresses, phone numbers, account credentials, payment methods, and sometimes government-issued identification used for credit checks. Even without an exact customer count, the exposure of internal files at this scale means household information linked to your home internet connection is now in criminal hands. That data can be sold, used for identity theft, or leveraged to impersonate you with other utilities or financial institutions.

Doxxing and Identity-Chain Risks

A single leaked internet-service record quickly becomes a pivot point for larger doxxing campaigns. Attackers cross-reference your service address with public records, social-media handles, and email addresses to build a complete profile. Once they control even one of your accounts, they can reset passwords elsewhere, request SIM swaps, or publish your family’s details on underground forums. Children’s accounts are especially vulnerable because gaming usernames and parental email addresses often share the same household address or phone number listed with Comwave. These credential leaks cascade into account takeovers that expose chat logs, location data, and photos far beyond the original breach.

Medusa’s Known Track Record

Public reporting attributes Medusa’s first notable campaigns to late 2021. The group has since targeted organizations across North America and Europe, frequently listing healthcare providers, manufacturers, and technology-service firms. Their standard playbook involves initial access through phishing or exploited remote-desktop services, followed by extensive internal reconnaissance, data exfiltration, and then dual extortion: demanding ransom to prevent file encryption and a second payment to stop data publication. The Medusa leak site typically posts samples and countdown timers, increasing pressure on victims who have not paid. The Comwave listing follows this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your email, phone number, service address, and online handles so you can see the full exposure chain created by this claimed breach.
  • Rotate any password you used for your Comwave account and enable 2FA with an authenticator app on every service where that password was reused.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information surfaces you learn within hours rather than months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts tied to the same residential address now listed in the Medusa archive.
  • Let remediation specialists handle data-broker takedown requests and opt-out processes that would otherwise require weeks of manual effort.

The Medusa listing of Comwave is a concrete reminder that even established Canadian service providers remain targets and that your household data can surface with little warning. Starting proactive defense now limits how far attackers can travel down the identity chain. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full family coverage that includes children’s gaming accounts at risk from credential leaks like this one.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed May 17, 2024
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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