A cohort is a sample of a website audience sharing the same characteristics during the same period. This common characteristics could be experience, event, geographic location, demographics. Cohorts let marketers study a population’s behavior over a certain time to help them adjust their campaigns and tactics. Cohorts are created using segmentation processes.
Cohort
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HIPAA violations and fines: What healthcare organizations need to know
Quick summary HIPAA violations happen when a covered entity or business associate fails to meet the HIPAA Privacy, Security or Breach Notification Rule. Civil penalties range from a few hundred dollars to more than $2 million per violation, set across four tiers based on how much the organization knew. What this guide covers: HIPAA violation…
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The EDPB’s new data anonymization guidelines: what they mean for your analytics data
Removing names, cookies and IP addresses is no longer enough to anonymize data. Here’s what the 2026 EDPB framework actually requires for anonymous data collection, what’s still unresolved, and how to configure your analytics to stay compliant while keeping the full view of traffic marketers rely on.
Other definitions
Recent posts from Piwik PRO blog
- HIPAA violations and fines: What healthcare organizations need to know
- The EDPB’s new data anonymization guidelines: what they mean for your analytics data
- What is considered protected health information (PHI) under HIPAA? A guide for healthcare marketers
- We checked 59 hospital websites. 73% kept tracking visitors after opt-out.
- HEALTHCARE WEBSITE TRACKING REPORT 2026: Are healthcare companies one audit away from a compliance crisis?
- Anonymous website visitor tracking: How to do useful analytics without personal data [Updated]
- What is PII, non-PII, and personal data? [Updated]
- What is first-party data and how does it benefit your marketing strategy [Updated]