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Deltek Data Breaches: Full Timeline Through 2026

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People search Deltek data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Deltek-linked incidents, with headline counts up to 80K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.

Why Deltek breach history matters

Deltek operates in Government (United States). Across indexed rows, recurring themes include mixed intrusion and disclosure events. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.

Full timeline through 2026

2014 — — Deltek: name, billing address, phone number, email address,…

Cataloged incident. name, billing address, phone number, email address, credit card info, and username Location of breached information: Website Business associate present: No Exposed categories include Personal information. No attested victim count is published for this row yet. See the deltek2014 and canonical BreachHistory entry.

2013 — — Deltek: Software developer Deltek Inc, 80K records

Cataloged incident. Software developer Deltek Inc. informed approximately 80,000 employees of a breach that occured in Deltek's GovWin IQ system.The company confirmed that on March 13, 2014 they suffered a cyberattack where hackers obtained usernames, passwords and credit card information for individuals who use the GovWin IQ system. Of the 80,000 individuals affected, 25,000 of those may have had credit card information breached.Those individuals who did have credit card information affected, the company is offeri Exposed categories include Personal information. BreachHistory cites approximately 80K+ affected records in this row. See the deltek2013 and canonical BreachHistory entry.

Patterns and analysis

  • Mixed intrusion and disclosure events — appears across multiple Deltek catalog entries; prioritize controls that address this class of failure.
  • Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
  • 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.

What to do if you may be affected

  1. Step 1: Enable phishing-resistant MFA on every account tied to this brand.
  2. Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
  3. Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
  4. Step 4: Bookmark the Deltek company page for new 2026+ disclosures.

Canonical BreachHistory hub

Explore every indexed row: breachhistory.com/deltek · Latest: deltek2014.

Sources: BreachHistory catalog (2 rows for Deltek), company and regulator disclosures cited in individual breach records.