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high severity August 25, 2023 · 4 min read Unverified claim — what this is

SMS-SME was hacked. A huge amount of confidential information was stolen, information of c Listed by alphv Ransomware Group

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

Who is SMS-SME SMS-SME was founded in 1993 by the top engineers from the Korean shipyard and global classification society. SMS-SME had a technology license partnership with Marco Neptune Germany at its launch. In 2002, we further innovated and established our own technology and design philosophy as an independent maker by ourselves. With an innovative product line and technology, SMS-SME has made rapid growth at Korean major shipyards who led the golden age of global shipbuilding. SMS-SME successfully expanded business worldwide, especially to the major shipyards in China and Japan to serve

— from Alphv’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.
SMS-SME was hacked. A huge amount of confidential information was stolen, information of c Listed by alphv Ransomware Group

On August 25, 2023, South Korean maritime technology firm SMS-SME appeared on the leak site of the Alphv ransomware group. The listing states that the company was hacked and that a huge amount of confidential information was stolen. The disclosure does not quantify how many individuals are affected and does not list specific data types beyond internal files that were allegedly exfiltrated during the ransomware attack.

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Reported Details from the Listing

The Alphv leak site entry, still accessible via the onion address hosted on ransomware.live, describes SMS-SME as the victim of a ransomware operation. It claims internal files were taken but provides no sample documents, no exact record count, and no breakdown of the information involved. The company, founded in 1993 by engineers from Korean shipyards and a global classification society, specializes in shipbuilding technology and has supplied major yards in Korea, China, and Japan. The primary disclosure gives no timeline for when the intrusion occurred, no ransom amount demanded, and no confirmation of whether any data has been publicly released beyond the initial listing.

Why This Matters for You and Your Family

When a specialized engineering firm like SMS-SME suffers a ransomware breach, the ripple effects reach ordinary people. Employees, former employees, business partners, and even customers may have personal details stored in the compromised internal files. If your name, address, phone number, email, or government identification appears in supplier records, HR documents, or project contracts, that information may now be in the hands of criminals. For families, this can mean sudden spikes in phishing calls, identity-theft attempts, or fraudulent loan applications that damage credit scores and create years of paperwork. The disclosure indicates the data was exfiltrated, which almost always precedes extortion attempts that can indirectly expose personal records if negotiations fail.

Doxxing and Identity-Chain Risks

Ransomware operators rarely stop at one dataset. A single leaked email or phone number from an internal SMS-SME file can be combined with information from other breaches to build a complete identity chain. Attackers link your work email to personal accounts, gaming handles, family addresses, and children’s online profiles. Once mapped, these chains enable targeted doxxing, SIM-swapping, or account takeovers that affect every member of the household. Credential leaks of this nature frequently cascade into gaming platforms, where children’s accounts become entry points for further harassment or theft because the same password or recovery email was reused.

Alphv’s Publicly Known Track Record

Public reporting attributes the emergence of Alphv, also known as BlackCat, to late 2021. The group has since hit hospitals, schools, manufacturing companies, and technology providers across multiple continents. Their typical playbook begins with initial access gained through phishing, remote-desktop vulnerabilities, or stolen credentials. Once inside, they exfiltrate data before deploying ransomware, then pressure victims through a dual-extortion model: threatening both file encryption and public release of stolen documents. The Alphv leak site is professionally maintained and regularly updated, showing the operators invest significant effort in both operational security and public shaming of non-paying victims.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real-world identity, including any connections that may stem from supplier or employment records at firms like SMS-SME.
  • Rotate passwords used for any SMS-SME-related accounts or services and enable 2FA through an authenticator app rather than SMS wherever possible.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your information is caught in hours, not months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often become targets when credential leaks create doxxing chains.
  • Let remediation specialists handle takedown requests for any exposed personal records that surface on data-broker or extortion sites.

The incident underscores that even specialized industrial suppliers can become gateways to personal exposure for thousands of unrelated individuals. One breach today can fuel identity theft and harassment campaigns for years unless the connections are actively mapped and broken. Start your DoxxScan trial for continuous monitoring, AI-powered identity-chain mapping, and hands-on remediation by specialists that protects both you and your family, including gaming accounts vulnerable to cascading takeovers.

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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Sms-Sme is one listing. Your email is probably in others.
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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed August 25, 2023
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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