Guide
Verify an online identity without confusing a clue with proof.
A practical OSINT guide to verifying an online identity with public sources, corroborating signals and documenting uncertainty without intrusion.
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Search the IIS library
All words are matched, regardless of accents or case. Search for a topic, not personal or confidential information: your search is sent to this site’s server.
46 results
Data
Digital intelligence glossary.
Bilingual, filterable glossary of 63 OSINT, evidence, identity, infrastructure, risk, influence and response terms, with interpretation limits.
Guide
Analyse a suspicious message without clicking, replying or disclosing more information.
Defensive method for assessing a suspicious email, text or message through sender identity, links, attachments, urgency, request and reporting.
Guide
Check a suspicious website without clicking through everything or mistaking polish for legitimacy.
A defensive guide to assessing a suspicious site through its exact address, claimed identity, public history, redirects and independent sources.
Guide
Verify a company and its directors without confusing registration, activity and reputation.
OSINT due-diligence method for checking legal identity, directors, addresses, changes, declared control and material business claims.
Guide
Verify a job offer and recruiter before sharing personal information.
A practical method for checking a job advert, recruiter identity, employer and sensitive requests before replying or sharing documents.
Reference page
Digital intelligence and OSINT for informed decisions.
Private digital intelligence for individuals, executives and companies: OSINT, cyber monitoring, due diligence, online reputation and risk analysis.
Reference page
Submit a sensitive situation
Submit a confidential request for OSINT, cyber monitoring, due diligence, online reputation, fraud or crisis support.
Data
Digital verification matrix.
Filter 36 practical digital verification checks across six categories. Bilingual editorial reference with purpose, caution and interpretation limits.
Data
Digital incident triage: 28 practical situations.
A bilingual, filterable reference for first actions, evidence to preserve and escalation across 28 digital incident scenarios. Read the relevant scenario.
Data
OSINT source-reliability matrix.
Interactive bilingual matrix for assessing provenance, independence, freshness and evidential value across 32 public-source types, with interpretation limits.
Reference page
Editorial responsibility and methods
Who publishes IIS guides, how to distinguish original methods from external data, and how to report an error.
Guide
Audit an executive’s public exposure without building an intrusive dossier.
A guide to inventorying relevant public executive traces, assessing impersonation risk and prioritising corrections while respecting privacy.
Guide
Check a potential sanctions-list match.
EU, UK and OFAC research method: compare identifiers, resolve namesakes, retain results and distinguish screening from a transaction decision.
Guide
A due diligence checklist that informs decisions without manufacturing certainty.
A due diligence checklist to verify an organisation, its leadership, public assets, risk signals and information requiring confirmation.
Guide
Preserve digital evidence without altering what matters.
A clear method for preserving screenshots, files, messages and timelines before reporting, expert review or legal action.
Guide
Respond to fake technical support without worsening the incident.
How to recognise a fake support request, verify the official channel and limit harm after remote access or payment has been granted.
Guide
Respond to online impersonation without losing evidence or amplifying the fake account.
An action plan for documenting online impersonation, securing access, warning exposed contacts, reporting fake profiles and tracking removal.
Guide
Verify an online fundraising appeal before donating or sharing it.
A method for checking a fundraiser’s organiser, project, beneficiary and payment channel without relying on images or testimonials alone.
Guide
Verify changed supplier bank details before paying.
A practical method to verify changed supplier bank details through an independent callback, dual control and a traceable payment decision.
Reference page
Legal notice
Legal notice for Internet Intelligence Service: ownership, hosting, intellectual property, liability, privacy and governing law.
OSINT tool / pathway
OSINT resources: tools, search engines and practical guides
Choose an OSINT research pathway, explore ten source families and find external tools with clear access limits.
OSINT tool / pathway
Companies and public registers · OSINT
Which legal entity corresponds to the trading name ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
OSINT directory: 54 external tools and sources
Filter 54 OSINT tools by use, access and coverage. Compare access conditions, coverage and interpretation limits.
OSINT tool / pathway
Domains and public infrastructure · OSINT
Which public observations clarify a domain without contacting its target ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Ten practical OSINT research pathways
Follow ten OSINT methods: define a question, choose primary sources, keep a source log and bound your conclusions.
OSINT tool / pathway
Image and video verification · OSINT
Does this media match the claimed place, date and narrative ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Maps, geolocation and satellites · OSINT
Which clues can confirm a place and period ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Method, documentation and learning · OSINT
How can a file be produced that another reader can verify ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Public posts and accounts · OSINT
How can a post be documented without premature author attribution ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Public data and statistics · OSINT
Can these figures be compared without changing their meaning ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Sanctions lists and namesakes · OSINT
Does a name match actually refer to the same entity ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
OSINT search launchpad
Prepare a public query for 13 external destinations. Review the destination before sending keywords, a domain or a URL to a provider.
OSINT tool / pathway
Web archives and preservation · OSINT
What did a page show at a particular time ? Practical method, external tools, source log and interpretation limits.
OSINT tool / pathway
Web and document search · OSINT
How can a claim and its original source be located ? Practical method, external tools, source log and interpretation limits.
Reference page
Personal data
Internet Intelligence Service privacy policy: contact, personal data, retention, rights, cookies and Google AdSense advertising.
Reference page
OSINT, cyber monitoring and digital risk guides.
Practical reference points for assessing a digital signal, preserving relevant evidence, reducing exposure and preparing a digital intelligence request.
Reference page
Due diligence and reputation decisions
Verify entities and roles, interpret public allegations and reviews, and define decision conditions.
Reference page
Fraud prevention and contact verification
Choose the right checks for messages, supplier payments, recruitment, fundraising and fake support.
OSINT tool / pathway
Verification log: sources, uncertainty and decisions
Record sources, observations and uncertainties in the current browser tab.
Reference page
24 cases to practise careful verification
Practise distinguishing observation, inference and uncertainty with 24 fictional cases. Read the method and compare the documented observations.
Service
Digital intelligence services
OSINT, cyber monitoring, due diligence, online reputation, fraud and crisis intelligence for individuals, executives and companies.
Service
Cyber monitoring: see visible risks before they are exploited.
Defensive cyber monitoring for public exposure, abusive domains, impersonation, visible leaks and threat signals targeting a brand or executive.
Service
Due diligence: decide with a more complete view of risk.
Digital due diligence before a partnership, sensitive hire, investment, acquisition or dispute: public facts, inconsistencies, reputation and risk.
Service
Online reputation: understand the origin, reach and dynamics of an attack.
Online reputation analysis covering content, narratives, relays and amplification to assess an attack and prepare a proportionate response.
Service
OSINT investigations: turning public traces into verifiable facts.
Lawful OSINT investigations: research, corroboration and analysis of public traces relating to people, companies, assets and digital environments.