01 — CONTEXT

What is WhatsApp computer forensic?

A computer forensic analysis of WhatsApp is the forensic examination of messages to certify their authenticity and integrity in legal proceedings. Because an uncertified screenshot has the same evidentiary value as a Post-it note: none.

Encrypted messaging

WhatsApp encrypts messages end-to-end, but this does not prevent their manipulation on the device. Messages are stored in local databases that can be altered.

Local storage

WhatsApp does not store messages on centralized servers. Each copy exists only on the participants’ devices, which makes verification difficult without forensic analysis.

SQLite database

Messages are stored in an encrypted database (msgstore.db) that can be manipulated with technical knowledge, creating fake messages that are indistinguishable.

02 — CONTEXT

Why do you need a professional forensic analysis?

Without a WhatsApp forensic analysis, the opposing party can challenge your messages, questioning their authenticity. A judge cannot (and should not) accept screenshots as valid evidence without technical certification.

Common use cases:
  • Civil proceedings: verbal contracts, service agreements
  • Labor law: communications in employment relationships
  • Family law: threats, harassment, breaches
  • Criminal cases: defamation, slander, cyberbullying, fraud
Without forensic analysis
  • Messages that can be challenged by the opposing party
  • Risk of loss due to deletion or phone damage
  • No real evidentiary value
  • Screenshots easily falsifiable
With a Lynx Devs forensic analysis
  • Certification of authenticity and integrity
  • Documented chain of custody
  • Expert report valid in court
  • Expert’s testimony in court
Beware of "low-cost" experts!

There are many professionals without qualifications or experience who offer forensic services at suspiciously low prices. An unqualified expert can be dismissed from the proceedings, invalidating all their work. Always require a certificate of professional registration and official qualifying credentials.

03 — METHODOLOGY

Our forensic analysis process

We follow a strict digital forensic protocol to ensure the validity of the evidence. Each step is documented to withstand any challenge.

STEP 01
Smartphone examination
STEP 01

Smartphone examination

We analyze the device to document its features and condition, and to detect any factors that could allow manipulation.

  • Administrator privileges verification
  • Detection of manipulation apps
  • Analysis of backup restorations
  • Documentation of the device’s condition
STEP 02
Forensic extraction
STEP 02

Forensic extraction

We extract the WhatsApp database and attachments while keeping the chain of custody intact.

  • Forensic copy of msgstore.db
  • Extraction of multimedia files
  • Chain of custody documentation
  • Integrity verification hash
STEP 03
Secure decryption
STEP 03

Secure decryption

We decrypt the encrypted WhatsApp database while preserving the integrity of the data and metadata.

  • Techniques adapted to each version
  • No alteration of metadata
  • Post-process verification
  • Intact chain of custody
STEP 04
Forensic analysis
STEP 04

Forensic analysis

We verify the authenticity of messages and files, detecting any possible manipulations.

  • Metadata analysis
  • Temporal consistency
  • Detection of alterations
  • Examination of attachments
STEP 05
Issuance of expert report
STEP 05

Issuance of expert report

We prepare a complete expert report valid for submission in court.

  • Detailed expert report
  • Message transcription
  • Technical annexes
  • Optional professional accreditation
STEP 06
Court testimony
STEP 06

Court testimony

The digital forensic expert testifies to the report in court and answers questions during cross-examination.

  • In-person or via video conference
  • Technical defense of the report
  • National scope
  • Full judicial support
04 — SERVICES

Specialized forensic services

We offer a comprehensive WhatsApp digital forensic service tailored to the specific needs of each legal case.

Intervention with chain of custody

We extract WhatsApp messages while preserving the digital chain of custody, documenting each step to ensure their evidentiary validity.

Authenticity and integrity analysis

We examine the WhatsApp database to determine whether the messages have been manipulated or altered.

Challenging opposing party’s messages

We analyze the messages provided by the opposing party to detect irregularities or manipulations.

Certified digital forensic expert

Our services are performed by a qualified and certified computer engineer, meeting the legal requirements to act as a court-appointed expert in Spain.

  • Computer Engineering (official qualifying degree)
  • Official professional registration
  • Training in digital forensics
  • Experience in court testimony
Lynx Devs
Professional Computer Forensics
Professional Certification Computer Engineering
Chartered Engineer COIICV / CPITIA
Scope National
Methodology In-person / Remote
How long does the complete process take?
Can deleted WhatsApp messages be recovered?
Is it necessary to hand over the mobile phone?
Is the expert report valid throughout Spain?
What happens if the other party challenges the messages?
Do you work directly with lawyers?

Customer reviews

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