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  • OspreyOpen source rules engine for anti-abuse decisions, first built at Discord.Content moderation platforms · Open source
  • OWASP Top 10 for LLM ApplicationsThe reference list of security risks in LLM applications.Red teaming and evaluation · Free
  • OwlculusOpen source OSINT toolkit with case management built in.Investigations and OSINT · Open source
  • OzoneOpen source labeling and moderation console for the AT Protocol.Case management · Open source
  • PDQOpen perceptual hash for images, with a matcher to go with it.Hash matching and databases · Open source
  • Pelidum Trust & SafetyTrust & Safety advisory: policy, operations, risk, DSA and OSA compliance, and fractional T&S leadership.Policy management · Service
  • Penlink (Cobwebs)Web intelligence and investigation platform for public safety and enterprise.Investigations and OSINT · Enterprise
  • PerceptionOpen Python wrapper over several perceptual hashing implementations.Hash matching and databases · Open source
  • PersonaConfigurable identity verification and KYC flows.Identity verification · Usage based
  • Perspective APIFree toxicity scoring for comments and conversation, from Jigsaw.Text and language analysis · Free
  • PexAudio and video fingerprinting to identify copyrighted music and video in UGC.Hash matching and databases · Enterprise
  • PhishLabsDigital risk protection: phishing, brand impersonation, social media and dark web threats.Threat intelligence · Enterprise
  • PhishTankCommunity verified phishing URL database with a free API.Threat intelligence · Free
  • PhotoDNAPerceptual hashing that matches images against known abuse material.CSAM detection · Free to qualifying organizations
  • PindropVoice fraud and synthetic speech detection for call centers and voice channels.Deepfake detection and provenance · Enterprise
  • PKU-SafeRLHFPrompts marked for unsafe responses across multiple harm categories.Datasets and benchmarks · Open source
  • Plaid Identity VerificationDocument, selfie and database verification inside Plaid's fintech data platform.Identity verification · Enterprise
  • PolicyKitToolkit for building and running community governance rules.Community management · Open source
  • PresidioOpen source detection and redaction of personal data in text and images.Data and analytics · Open source
  • Private DetectorOpen model for identifying unsolicited lewd images.Image and video analysis · Open source
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