For graph and advanced features, download the full Intel Codex Vault and open it in Obsidian.
LinkedIn OSINT SOP
1) Access & Client Options
- Web: https://www.linkedin.com/search/results/all/ (most comprehensive search)
- Sales Navigator: https://www.linkedin.com/sales (premium, advanced filtering)
- Recruiter Lite: https://business.linkedin.com/talent-solutions/recruiter (premium)
- Mobile apps: iOS/Android (limited functionality, messaging-focused)
- API access: LinkedIn API (heavily restricted, primarily for partners)
- Access consideration: Logged-out vs persona profiles (balance access vs visibility)
- View modes: Public view (limited) vs logged-in (profile view tracking)
2) Search Operators & Boolean Logic
Basic Operators
"exact phrase"- Exact matchAND- Both terms must appearOR- Either termNOT- Exclude term- Parentheses
()- Group logic - +Name
Advanced Filters
- People filters:
title:"CEO"- Current job titlecompany:"Microsoft"- Current/past companyschool:"Harvard"- Educational institutionlocation:"San Francisco Bay Area"- Geographic location
- Boolean combinations:
title:("CEO" OR "Founder" OR "President")company:"Google" AND location:"Seattle"school:"MIT" NOT company:"Amazon"
Search Filter Categories
- Connections: 1st, 2nd, 3rd degree, or all members
- Locations: City, metro area, country
- Current/Past Companies: Filter by employment status
- Industries: LinkedIn's predefined industry categories
- Profile Language: Filter by language
- Schools: Universities, colleges, certifications
- Service Categories: For consultants, freelancers
3) Repeatable Workflow
- Target identification: Name variations, maiden names, nicknames, company affiliations
- Profile analysis: Current role, career history, education, skills
- Network mapping: Connections (1st/2nd/3rd degree), mutual connections
- Career timeline reconstruction: Role progression, gaps, promotions, lateral moves
- Skills assessment: Endorsements, recommendations, certifications, courses
- Content analysis: Posts, articles, comments for personality/interests/expertise
- Contact harvesting: Direct contact info, company email patterns
- Corporate intelligence: Company page analysis, employee networks, org structure
- Cross-platform pivoting: External links, Twitter/GitHub handles
- Documentation: Export data, screenshots, hashing, chain of custody
4) Profile Intelligence
Profile Analysis
- Basic info: Full name, headline, location, industry
- Current role: Title, company, duration, responsibilities (if listed)
- Career history: Previous roles, employment gaps, promotions
- Education: Degrees, institutions, graduation years, activities
- Skills & endorsements: Top skills, endorsement counts, endorsers
- Recommendations: Given/received, relationship context
- Certifications: Professional licenses, technical certs, completion dates
- Volunteer work: Non-profit involvement, causes supported
- Publications: Articles, papers, patents, media mentions
- Languages: Proficiency levels, native language indicators
Behavioral Indicators
- Profile activity: Last update timestamp, posting frequency
- Engagement style: Likes, comments, shares (if visible)
- Content themes: Topics posted about, industry focus
- Network growth: Connection velocity, network size
- Job seeking: "Open to work" badge, recent profile updates
- Thought leadership: Published articles, industry commentary
5) Company Page Intelligence
Company Analysis
- Employee directory: Current employees by department, seniority, function
- Alumni network: Former employees and their current positions (competitive intel)
- Hiring signals: Open positions, growth areas, job posting frequency
- Leadership team: Executives, board members, recent appointments
- Company updates: News, funding, partnerships, product launches
- Follower analysis: Who follows the company, competitor employees
- Affiliated pages: Subsidiaries, brands, regional offices
Organizational Mapping
- Org structure: Department sizes, leadership hierarchy (inferred from titles)
- Employee tenure: Average time at company, retention indicators
- Hiring patterns: Which companies they recruit from
- Expansion signals: New office locations, international growth
- Competitive migration: Employee movement to/from competitors
6) Investigation Recipes
Executive Mapping
Objective: Identify C-suite and senior leadership
Search:
company:"Target Corp" AND (title:"CEO" OR title:"CFO" OR title:"CTO" OR title:"President" OR title:"VP" OR title:"SVP")
Method:
- Search company name with executive titles
- Export results to spreadsheet
- Map reporting structures via titles
- Identify tenure, previous companies
- Check for external advisors, board members
Competitive Intelligence
Objective: Find employees who moved between competitor companies
Search:
company:"Your Company" AND (company:"Competitor A" OR company:"Competitor B" OR company:"Competitor C")
Method:
- Search for profiles listing both companies
- Determine employment order (current vs past)
- Analyze knowledge transfer risk (engineers, executives)
- Check for non-compete violations (timing)
- Identify recruitment patterns
M&A Due Diligence
Objective: Map target company leadership and key personnel
Search:
company:"Acquisition Target" AND (title:"Founder" OR title:"C-level" OR title:"VP" OR title:"Director")
Method:
- Identify all key personnel
- Check for recent departures (red flag)
- Verify credentials, experience
- Map customer-facing employees
- Assess technical talent depth
Industry Expert Discovery
Objective: Find subject matter experts in specific domain
Search:
title:"Cybersecurity" AND (title:"Director" OR title:"VP" OR title:"CISO") AND location:"Washington DC"
Method:
- Search by expertise + seniority + location
- Check certifications (CISSP, etc.)
- Review published content, speaking engagements
- Verify via external sources (conference speakers)
- Assess credibility via recommendations
7) Collection & Evidence Integrity
Capture Methods
- Profile PDFs: Use "Save to PDF" for official record
- Screenshots: Full profile with URL, timestamp visible
- HTML source: Save page source for metadata
- Connection data: Export 1st-degree connections (if accessible)
- Company pages: Full company page with employee count, updates
- Posts/comments: Individual content items with engagement metrics
File Organization
/Evidence/{{case_id}}/LinkedIn/
├── YYYYMMDD-HHMM/
│ ├── profiles/
│ │ ├── firstname_lastname_profile.pdf
│ │ ├── firstname_lastname_profile.html
│ │ └── firstname_lastname_screenshot.png
│ ├── companies/
│ │ ├── company_name_page.pdf
│ │ └── company_name_employees.csv
│ ├── posts/
│ │ └── post_[ID]_screenshot.png
│ └── SHA256SUMS
Hashing & Verification
- Calculate SHA-256 for all captured files
- Store hashes in
SHA256SUMSfile - Document capture timestamp (UTC), profile URL, LinkedIn ID
- Reference in Collection Log
- Maintain chain of custody for legal proceedings
8) Advanced Techniques
Sales Navigator Techniques (Premium)
- Lead lists: Save and track specific individuals
- Advanced filters: More granular search options
- TeamLink: Leverage team connections for warm intros
- Saved searches: Automated alerts for profile changes
- InMail credits: Direct messaging without connections
Network Analysis
- Mutual connections: Identify relationship paths
- 2nd-degree mapping: Potential warm introductions
- Company network clustering: Employee interconnections
- Educational networks: Alumni associations, cohorts
- Industry communities: Professional groups, associations
Temporal Intelligence
- Profile snapshots: Wayback Machine for historical profiles
- Job change tracking: Monitor for role updates
- Company transitions: Track employee departures/arrivals
- Promotion patterns: Career velocity indicators
- Content timeline: Track thought leadership evolution
9) Pivoting & Cross-Platform Correlation
Profile Pivots
- Email patterns → Corporate email format (
firstname.lastname@company.com) - Username consistency → Same name on Twitter, GitHub, personal blogs
- External links → Personal websites, portfolios, social media profiles
- Phone numbers → Rarely listed, but check "Contact Info" section
- Company websites → Leadership pages, team bios, press releases
Content Pivots
- Published articles → Reposted on Medium, personal blogs
- Conference talks → YouTube videos, presentation slides
- Patents → USPTO database, Google Patents
- Academic papers → Google Scholar, ResearchGate
- Media mentions → News articles, press releases, podcasts
Network Pivots
- Shared connections → Mutual professional relationships
- Recommendation networks → Who endorses whom (trust indicators)
- Company alumni → Where former colleagues went
- Educational networks → Classmates, faculty connections
- Board interlocks → Directors serving on multiple boards
10) Tools & Resources
| Tool | Purpose | Platform | Access |
|---|---|---|---|
| LinkedIn Search | Native search interface | Web | https://www.linkedin.com/search |
| Sales Navigator | Advanced search and tracking | Web (Premium) | https://www.linkedin.com/sales |
| Recruiter Lite | Talent search and outreach | Web (Premium) | https://business.linkedin.com/talent-solutions |
| Nuclei | Username enumeration | CLI | nuclei -tags osint -var user=username |
| Social-Analyzer | Cross-platform username search | CLI | pip install social-analyzer |
| PhantomBuster | LinkedIn automation (use carefully) | Web | https://phantombuster.com |
| LinkedIn data to Excel | Chrome extension for data export | Browser | https://chromewebstore.google.com/detail/linkedin-data-to-excel/cacmkfdcephcjmikahniogdajagggfmj==: |
| Wayback Machine | Historical profile snapshots | Web | https://web.archive.org |
| Hunter.io | Email finder and verification | Web | https://hunter.io |
| RocketReach | Contact information database | Web | https://rocketreach.co |
| LinkedIn OSINT Comment Extractor | Extract comment data, user profiles, and engagement metrics from LinkedIn posts | Bookmarklet | https://github.com/gl0bal01/bookmarklets/tree/main/bookmarklet-linkedin-osint-extractor== |
Email Pattern Tools
# Common corporate email patterns
firstname.lastname@company.com
firstnamelastname@company.com
flastname@company.com
firstname@company.com
f.lastname@company.com
# Verify using Hunter.io or similar
curl "https://api.hunter.io/v2/email-finder?domain=company.com&first_name=John&last_name=Doe&api_key=YOUR_KEY"
11) Risks & Limitations
- Premium requirements: Advanced features require Sales Navigator ($99/mo)
- Profile view tracking: Targets see who viewed their profile (unless private mode)
- Rate limiting: Free accounts have search result caps
- Geographic restrictions: Content varies by region, EU has stricter privacy
- Profile completeness: Not all users maintain detailed profiles
- Privacy settings: Some info hidden from non-connections
- Data accuracy: Self-reported data may be outdated or false
- Automated scraping bans: Platform actively blocks scrapers
- Connection limits: Weekly connection request limits
12) Quality Assurance & Verification
Profile Verification
- Cross-reference employment: Check company websites, press releases
- Timeline consistency: Role dates should align with company announcements
- Education verification: Confirm degrees via university records (if accessible)
- Certification validation: Verify professional licenses with issuing bodies
- Recommendation authenticity: Check if recommenders are real, current connections
Evidence Validation
- Multiple data points: Don't rely solely on LinkedIn (use company sites, news)
- Temporal consistency: Check if career timeline makes logical sense
- Skill claims: Technical certifications should match claimed expertise
- Company verification: Confirm company legitimacy (not shell companies)
- Network plausibility: Connection count and quality should match seniority
13) Real-World Scenarios
Scenario 1: M&A Due Diligence
Situation: Private equity firm acquiring SaaS company, needs leadership assessment.
Approach:
- Map all C-suite and VP-level personnel via company page
- Check tenure (recent executive departures = red flag)
- Verify credentials, previous company success/failures
- Identify key technical talent (engineering VPs, CTOs)
- Check for non-compete issues (recently hired from competitors)
- Assess sales team strength (customer relationships)
- Document findings in dossiers per Entity Dossier SOP
Outcome: Identified 3 VPs hired within 6 months (poaching from competitor); CTO had failed startup in same vertical (concern); 60% of engineering team had <1 year tenure (retention risk); provided detailed leadership assessment influencing $15M valuation adjustment.
Scenario 2: Competitor Intelligence
Situation: Tech company wants to understand competitor's AI strategy and hiring.
Approach:
- Search competitor company + AI-related titles:
company:"Competitor" AND (title:"AI" OR title:"Machine Learning" OR title:"Data Scientist") - Track employee growth in AI org over 12 months (10 → 45 = aggressive hiring)
- Identify where they're recruiting from (universities, specific companies)
- Check job postings for technology stack indicators (PyTorch, TensorFlow)
- Review published content from AI team members (research papers, blog posts)
- Map org structure: VP AI → Engineering Managers → team sizes
Outcome: Discovered competitor building 50-person AI team; recruiting PhDs from Stanford/MIT; job posts revealed focus on computer vision (not NLP); adjusted own company's product roadmap and talent acquisition strategy based on intelligence.
Scenario 3: Pre-Employment Background Investigation
Situation: Candidate for CFO position, verify credentials and identify any concerns.
Approach:
- Verify employment history matches resume (dates, titles, companies)
- Check education credentials (MBA from claimed university)
- Review recommendations (are they from claimed colleagues?)
- Search for any concerning posts/comments (judgment issues)
- Check for connections at competitor companies (potential conflicts)
- Verify professional certifications (CPA license number)
- Cross-reference with SEC filings if was executive at public company
Outcome: Found 6-month employment gap not on resume; title inflation (was "Senior Accountant" not "Controller"); MBA from unaccredited online university; 2 DUI-related posts from 5 years ago; flagged concerns to hiring manager; candidate ultimately withdrew from process.
14) Emergency Procedures
Immediate Archival Triggers
- Candidate withdrawing from process (capture before profile updates)
- Target showing signs of profile deletion (changing to minimal info)
- Ongoing litigation requires evidence preservation
- M&A deal closing soon (capture pre-acquisition state)
- Employee under investigation for misconduct
Rapid Response Protocol
- Full profile PDF: Save official version immediately
- Screenshots: Capture with URL and timestamp visible
- Connection export: Save 1st-degree connections if accessible
- Content archive: All posts, articles, comments
- Company page: Full company info and employee list
- Hash calculation: SHA-256 for integrity
- Documentation: Log all actions with timestamps
- External archive: Submit to Wayback Machine
Escalation Triggers (see Sensitive Crime Escalation SOP)
- Security clearance: Classified positions require special handling
- Legal concerns: Employment disputes, discrimination, harassment
- Threat assessment: Concerning posts indicating violence, extremism
- Corporate espionage: Evidence of trade secret theft
- Fraud indicators: False credentials, fake employment history
15) Related SOPs
- Legal & Ethics SOP - Review before every investigation
- OPSEC Planning - Private browsing mode, VPN usage
- Collection Log - Evidence tracking and chain of custody
- Web/DNS/WHOIS OSINT - Investigate company websites
- Financial & AML OSINT - Executive compensation, insider trading
- Entity Dossier Building - Professional profile documentation
- Reporting & Disclosure - Final report preparation
16) External Resources
Official Documentation:
- LinkedIn Help Center: https://www.linkedin.com/help/linkedin
- Sales Navigator Guide: https://business.linkedin.com/sales-solutions/resources
- LinkedIn Developer Platform: https://developer.linkedin.com (limited access)
Third-Party Tools:
- Nuclei Templates: https://github.com/projectdiscovery/nuclei-templates
- Social-Analyzer: https://github.com/qeeqbox/social-analyzer
- PhantomBuster: https://phantombuster.com/phantombuster
- Hunter.io API: https://hunter.io/api
- LinkedIn data to Excel: https://chromewebstore.google.com/detail/linkedin-data-to-excel/cacmkfdcephcjmikahniogdajagggfmj
- LinkedIn OSINT Comment Extractor: https://github.com/gl0bal01/bookmarklets/tree/main/bookmarklet-linkedin-osint-extractor
Training & Guides:
- Bellingcat LinkedIn OSINT: https://www.bellingcat.com/resources/how-tos/
- OSINT Framework LinkedIn: https://osintframework.com/
- Sales Navigator Training: https://learning.linkedin.com/sales-navigator
Last Updated: 2025-10-06 Version: 2.0 (Expanded & Standardized) Review Frequency: Yearly