high severity June 22, 2024 · 3 min read

Zacks (2024) Data Breach (2024)

If you are a customer of Zacks (2024), here’s what’s now in circulation.

In June 2024, the investment research company Zacks was allegedly breached, and data was later published to a popular hacking forum. This comes after a separate Zacks data breach confirmed by the organisation in 2023 with the subsequent breach disclosing millions of additional records representing a superset of data from the first incident. The 2024 breach included 12M unique email addresses along with IP and physical addresses, names, usernames, phone numbers and unsalted SHA-256 password hashes. Zacks did not respond to multiple attempts to contact them about the incident.

On June 22, 2024, investment research firm Zacks appeared in a fresh data breach listing on Have I Been Pwned, confirming that records belonging to 12 million unique email addresses had been published to a popular hacking forum. The exposed information includes names, usernames, unsalted SHA-256 password hashes, email addresses, phone numbers, physical addresses, and IP addresses. This incident follows a separate breach the company acknowledged in 2023, with the new dataset described as a superset containing millions of additional records.

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Reported Details from the Disclosure

The primary listing on Have I Been Pwned states that the 2024 Zacks breach contains 12 million unique email addresses along with names, usernames, phone numbers, physical addresses, IP addresses, and unsalted SHA-256 password hashes. The notification does not specify the exact attack vector or the precise date the data was exfiltrated. Zacks did not respond to multiple attempts by researchers to obtain comment or clarification. The disclosure explicitly notes that this dataset represents a superset of information from the organization’s previously confirmed 2023 breach.

Unsalted SHA-256 hashes mean that any password cracked from this collection can be used immediately on other sites where victims reused the same password.

Why This Matters for You and Your Family

If you or anyone in your household has used Zacks’ investment research services, your personal information is now available to cybercriminals. Names paired with physical addresses, phone numbers, and email addresses create a ready-made profile for identity theft, phishing campaigns, or fraudulent loan applications. The inclusion of password hashes raises the immediate risk that attackers will attempt to crack them and then test those credentials across banking, email, and shopping accounts. Children or other family members who share an email domain or household address can easily become collateral targets once one person’s data surfaces.

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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.

Report details & sourcing

Severity High contact details only, none of them permanent

Disclosed June 22, 2024

Last reviewed July 22, 2026

Affected 12.0M

Data exposed Email addressesIP addressesNamesPasswordsPhone numbersPhysical addressesUsernames

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.

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