What Is A Background Check?
How background research can help verify identity, history, claims, and reputation signals.
What Is Open-Source Intelligence?
Open-source intelligence, often called OSINT, is research using publicly available sources and accessible records.
For private investigators, OSINT may include websites, corporate filings, court indexes, news, maps, social media, domain records, directories, and other information that can be lawfully reviewed.
Back to GlossaryRelated Terms and Pages
What Is Due Diligence?
How due diligence helps review people, companies, investments, vendors, or business concerns.
What Is A Fraud Investigation?
How fraud investigations review inconsistencies, claims, transactions, and supporting facts.
OSINT and Social Media Research
Open-source research for social profiles, online history, business claims, and identity indicators.
Background and Due Diligence Checks
Research people, companies, addresses, claims, and business concerns before decisions are made.
Private Investigator In Lisbon
Surveillance, due diligence, locate work, and relationship matters in Lisbon and nearby communities.