high severity July 09, 2018 · 1 min read

ShareThis Data Breach (2018)

If you are a customer of ShareThis, here’s what’s now in circulation.

In July 2018, the social bookmarking and sharing service ShareThis suffered a data breach. The incident exposed 41 million unique email addresses alongside names and in some cases, dates of birth and password hashes. In 2019, the data appeared listed for sale on a dark web marketplace (along with several other large breaches) and subsequently began circulating more broadly. The data was provided to HIBP by dehashed.com.

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.

Were you a ShareThis customer?

ShareThis is one listing. Your email is probably in others.

41.0M accounts were exposed here. Check whether yours is one — and find every other leak tied to the same address, in about 15 seconds. No account, no card.

Report details & sourcing

Severity High

Disclosed July 09, 2018

Last reviewed July 22, 2026

Affected 41.0M

Data exposed Dates of birthEmail addressesNamesPasswords

By GalaxyWarden Threat Research · Editorial & sourcing standards

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.

Sources: Have I Been Pwned

Related breaches

high December 01, 2018

ShareThis Data Breach (2018)

Found on people-search siteswe remove these

Found in breach recordsverifiedreported — unverified

Report details & sourcing

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