Almeida Law Group is investigating a data breach at NetLine Corporation. The breach occurred on April 20, 2026 and was discovered on April 29, 2026. If you were affected, contact Almeida Law Group.
About NetLine Corporation
NetLine Corporation is a B2B content syndication and lead generation platform founded in 1994. It operates what is described as the largest B2B-specific content syndication network, reaching approximately 125 million unique visitors and processing over 700,000 leads monthly across 300 industry sectors. In November 2021, NetLine was acquired by Informa PLC for $62 million and now operates as a subsidiary within Informa’s technology division. The Maine filing lists its address as 275 Grove Street, Newton, MA 02466, which is an Informa office; NetLine has historically been headquartered in California.
What Happened?
NetLine Corporation was listed in a Maine Attorney General filing dated May 27, 2026. The filing describes an external system breach in which an unknown actor queried certain databases on a public-facing web server without authorization on April 20, 2026. NetLine’s ongoing monitoring services detected the suspicious activity on or about April 21, 2026, and the company completed its review of the affected databases on April 29, 2026. The compromised information includes names combined with Social Security numbers or Individual Taxpayer Identification Numbers (ITINs). NetLine notified affected individuals in writing on May 27, 2026, and is offering 24 months of identity monitoring and identity theft protection services through Cyberscout, a TransUnion company, at no cost to those affected.
The total number of persons affected nationwide was not disclosed in the filing. No ransomware group or specific threat actor has been publicly linked to this incident, and no independent media or security researcher reporting about this breach was found as of late May 2026. Because the compromised data includes Social Security numbers and ITINs rather than typical marketing lead data, the affected records likely belong to employees, contractors, or business partners rather than marketing contacts.
Key Facts at a Glance
- Company or Organization: NetLine Corporation
- Industry: B2B Marketing Technology / Advertising & Marketing Services / Lead Generation
- Location: 275 Grove Street, Newton, MA 02466 (Informa office); historically headquartered in California
- Incident type: External system breach (hacking)
- Date of breach: April 20, 2026
- Date breach discovered: April 29, 2026
- Date of consumer notification: May 27, 2026
- Identity theft protection offered: Yes — 24 months, Cyberscout by TransUnion (credit monitoring and identity theft protection services)
- Source: Maine Attorney General filing; BrightTower/PR Newswire — Informa acquisition of NetLine
What Should You Do?
If you received a notice from NetLine Corporation, enroll in the 24-month Cyberscout identity monitoring service as soon as possible using the instructions provided in your letter. Beyond that, consider placing a fraud alert or credit freeze with each of the three major credit bureaus — Equifax, Experian, and TransUnion — to help prevent new accounts from being opened in your name. Because Social Security numbers and ITINs were involved, monitoring your credit reports closely is especially important; you can request free reports at AnnualCreditReport.com. Review your financial account statements regularly for any unfamiliar activity, and if you spot signs of fraud or identity theft, report them at IdentityTheft.gov, which provides a personalized recovery plan.
Your Legal Rights
If your personal information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.
