Nikolaos Kranidiotis

Forensic Intelligence & Case Analysis

Cybercrime Investigations · Digital Forensics · Dark Web Intelligence

info@osec.gr  ·  +30 697 798 6989  ·  Athens, Greece  ·  osec.gr

Nikolaos Kranidiotis Forensic Intelligence & Case Analysis

Cybercrime · Digital Forensics · Dark Web Intelligence

Nikolaos Kranidiotis

Where Every Connection Becomes Evidence.

Evidence-driven investigations, technical attribution and forensic intelligence for complex digital cases.

  • 215+Cases Investigated
  • AthensGlobal Casework
  • ConfidentialInvestigations
  • Court-ReadyReporting

02 Expertise

Five disciplines.
One investigative method.

Every engagement resolves to the same question — what actually happened, and what can be proven. These are the disciplines used to answer it.

P/01

Cybercrime Investigations

Fraud, impersonation, unauthorised access, scams, online threats and complex digital incidents. Focused on attribution, timelines, evidence preservation and actionable findings.

  • Attribution
  • Timelines
  • Evidence Preservation
P/02

Digital Forensics

Forensic examination of computers, mobile devices, digital media and acquired evidence. Integrity validation, artifact recovery, timeline reconstruction and evidence correlation.

  • Integrity Validation
  • Artifact Recovery
  • Chain of Custody
P/03

Dark Web Intelligence

Investigation of underground forums, marketplaces, leaked data and hidden infrastructure. Threat actor profiling, infrastructure mapping and breach intelligence.

  • Actor Profiling
  • Infrastructure Mapping
P/04

Malware & Threat Analysis

Static and behavioural malware analysis, reverse engineering, persistence analysis, command-and-control identification and IOC extraction.

  • Reverse Engineering
  • C2 Identification
P/05

Mobile & Device Forensics

Android and iOS forensic examination, communication artifacts, deleted data, application analysis and device activity reconstruction.

  • iOS / Android
  • Deleted Data

Additional capabilities

  • OSINT
  • Threat Actor Profiling
  • Network Analysis
  • Security Testing
  • Image Forensics
  • Intelligence Reporting

03 Selected Casework

Anonymised records.
Representative work.

Client identities and case specifics remain confidential. What follows are the categories of investigation handled most often, and the methods each one requires.

CASE-0215

Financial Fraud & Investment Crime

Digital tracing, transaction analysis, attribution and evidence correlation across platforms, intermediaries and payment rails.

Analysis Complete
  • Tracing
  • Attribution
CASE-0198

Dark Web Threat Actor Identification

Alias correlation, infrastructure mapping, OSINT and operational-security analysis leading to identification and attribution support.

Attribution
  • OSINT
  • Infrastructure
CASE-0176

Business Email Compromise

Email forensics, header and infrastructure analysis, timeline reconstruction and attribution of the intrusion path.

Timeline
  • Email Forensics
  • Reconstruction
CASE-0154

Malware & Device Compromise

Malware analysis, persistence identification, IOC extraction and forensic examination of affected systems.

Forensics
  • IOC Extraction
  • Persistence
CASE-0131

Mobile Device Investigations

Application artifacts, communications, deleted data recovery and device activity reconstruction across Android and iOS.

Intelligence
  • Artifacts
  • Recovery

215+ investigations across cybercrime, fraud, digital evidence and threat intelligence.

04 Investigation Process

Four stages.
No shortcuts between them.

  1. 01

    Intake

    Define the incident, objectives, available evidence and investigative scope.

  2. 02

    Preserve

    Acquire and validate evidence while maintaining integrity and chain of custody.

  3. 03

    Analyze

    Reconstruct timelines, correlate artifacts and identify meaningful connections.

  4. 04

    Report

    Deliver clear findings, technical conclusions and actionable recommendations.

Evidence preserved. Findings documented. Conclusions defensible.

Nikolaos Kranidiotis, cybercrime investigator, photographed in his Athens office
SubjectN. Kranidiotis LocationAthens, GR

05 About

Forensic intelligence for complex digital investigations.

Nikolaos Kranidiotis is a cybercrime investigator specialising in digital forensics, dark web intelligence, malware analysis and technical attribution.

His work focuses on uncovering connections between digital evidence, infrastructure, identities and events in order to reconstruct incidents and produce clear, defensible investigative findings.

Casework spans financial fraud, cybercrime, compromised systems, malicious software, online threat actors and complex digital evidence.

215+ Cases Investigated Cybercrime · Digital Forensics · Dark Web Intelligence
Where Every Connection Becomes Evidence.

Who I work with

  • W/01

    Businesses

    Cyber incidents, fraud, compromise and internal investigations.

  • W/02

    Legal Teams

    Technical evidence analysis and forensic reporting.

  • W/03

    Private Clients

    Complex digital incidents requiring confidential investigation.

  • W/04

    Organizations

    Threat intelligence, digital forensics and incident investigation.

06 Contact

Discuss a case.

Confidential consultations for cybercrime, digital forensics and forensic intelligence matters.

Email info@osec.gr
Phone +30 697 798 6989
Location Athens, Greece International casework

Where Every Connection Becomes Evidence.

Nikolaos Kranidiotis — Forensic Intelligence & Case Analysis © 2026 RIA — Reconnaissance Investigation Agency · Athens, Greece · osec.gr