GNU LEGAL
A learning initiative from GNU IT Solutions & Services

Cybercrime &
Digital Investigation

Handle the incident. Preserve the evidence. Investigate the record. Challenge attribution. Draft the next step. Build the case.

Practice law. Don’t just read it.

INDIA MATTER-CENTRED FACTS FIRST SOURCE-BACKED

Chambers Desk

You are counsel receiving a live cyber incident. Your task is not to identify the largest possible list of sections. Your task is to determine what happened, what must happen next, what evidence exists, what can actually be proved, and where the opposing case is vulnerable.

1. Triage

Loss, systems, accounts, continuing compromise, reporting clocks and immediate preservation.

2. Investigate

Separate victim narrative, system events, device evidence, payment trail and provider records.

3. Prove

Provenance, completeness, §63 route, attribution, expert evidence and corroboration.

4. Challenge

Account ≠ actor. Device ≠ user. IP ≠ identity. Transaction record ≠ proof of deception.

Chambers rule: never convert a technical indicator directly into a legal conclusion. State the indicator, its source, what it tends to prove, and the additional inference required.

Your progress

0 of 15 chambers tasks completed.

CYB-001 · The 43-Minute Window

Role: You act for the complainant initially. You will later switch sides.

09:12 — Client’s mobile loses network connectivity while travelling to work.
09:26 — Telecom record later shows a replacement SIM activated through a retail channel.
09:39 — Bank records show a UPI-capable device registration event associated with the account.
09:47–09:55 — Three transfers totalling ₹2.85 lakh leave the client’s account.
10:03 — Client regains connectivity after restarting the handset and notices debit messages.
10:11 — Client calls the bank and disputes the transactions.
10:18 — Client calls 1930 and receives an acknowledgement reference.
Fact trap: the chronology suggests account takeover. It does not yet prove who obtained the replacement SIM, who controlled the newly registered device, or who ultimately operated the beneficiary accounts.

Matter Core · Evidence Locker

CYB-001-A01
Debit SMS screenshots
Useful for notice and chronology. Not the strongest source for the underlying payment-system event.
CYB-001-A02
Bank transaction statement
Shows debits and transaction references. Does not by itself establish who initiated them.
CYB-001-A03
Telecom SIM-replacement record
Potentially important to takeover theory. Requires provenance and identity/process analysis.
CYB-001-A04
Bank device-registration / authentication logs
Potentially shows technical account events. Account/device event is not automatically a human identity finding.
CYB-001-A05
1930 / NCRP acknowledgement
Important for reporting chronology and follow-up. It does not prove the substantive offence.
CYB-001-A06
Beneficiary-account trail
May support tracing. Receipt of funds must still be distinguished from knowledge, participation and ultimate control.

Decision 1 · Your first instruction?

FULL MATTER · ACTIVE

CYB-002 · The Altered Invoice

Role: You act as incident counsel to an Indian engineering company after a supplier payment is diverted. Your first job is to preserve the record before deciding whether this was spoofing, mailbox compromise, insider conduct, or a combination.

09:06 — The supplier finance mailbox records a successful sign-in from a network not ordinarily seen in the prior 30-day audit sample.
09:11 — A mailbox rule is created that redirects messages containing the customer’s company name into a low-visibility folder.
09:24 — The buyer receives a genuine invoice in an existing supplier thread.
09:31 — A further message in the same thread instructs the buyer to use a “new banking partner” and attaches a visually similar invoice carrying different beneficiary details.
10:07 — The buyer replies by email asking whether the change is confirmed. A confirming reply arrives from the supplier mailbox. No independent voice callback is made.
11:02 — ₹18.40 lakh is transferred to the changed beneficiary account.
15:26 — The supplier’s accounts head calls about non-payment to the original account. The incident is escalated.
Fact trap: “sent from the supplier mailbox” is not the same proposition as “sent by the supplier employee.” A successful sign-in is not, without more, proof of the human actor behind it.

Matter Core · Evidence Locker

CYB-002-A01
Raw MIME / full email thread
Preserve the native message source, headers, timestamps, message IDs and attachments rather than relying only on screenshots or forwarded copies.
CYB-002-A02
SaaS sign-in and audit records
May show account events, IP/network fields, client/app context and timestamps. They still require provenance and attribution analysis.
CYB-002-A03
Mailbox-rule / forwarding configuration history
Potentially explains concealment or interception. Determine when the rule appeared, how it was created and what logs survive.
CYB-002-A04
Original and altered invoice files
Compare file content, metadata, hashes and delivery path. Visual similarity is not proof of common authorship.
CYB-002-A05
Payment instruction and beneficiary trail
Establishes the payment path. Beneficiary KYC/receipt must not be collapsed into proof of the antecedent deception.
CYB-002-A06
Endpoint / identity records
Browser sessions, MFA events, token/session data and endpoint artefacts may corroborate or contradict the mailbox theory.
CYB-002-A07
Buyer and supplier witness accounts
Record who knew of the bank change, normal verification practice, account access, shared credentials and the point at which the incident was discovered.

Decision 4 · What should happen first?

Attribution Board

Hypothesis A · Supplier mailbox compromise

Look for session/audit evidence, rule creation, token/MFA events, endpoint evidence and timing consistent with hostile control.

Hypothesis B · Spoofing / look-alike route

Test domains, envelope/header path, reply behavior and whether the message actually originated from the genuine service/account.

Hypothesis C · Insider participation

Do not infer it merely from knowledge of invoice details. Identify access, motive, communications and actions that connect a human actor.

Hypothesis D · Valid-credential use by unknown actor

An account can be authentically accessed while the operator remains unidentified. Build the bridge rather than assuming it.

Decision 5 · The SaaS log shows a successful login from an unfamiliar IP. What is the safe proposition?

Law/evidence bridge: depending on proved facts, test IT Act §§43/66, §66C and §66D and BNS §§318–319 by ingredients rather than labels. For tendering provider exports, mail records or other computer outputs, carry the record into the Electronic Evidence Practitioner and analyse the BSA §63 route.
FULL MATTER · ACTIVE

CYB-003 · The Six-Hour Ransomware Window

Role: You advise an Indian company during an active ransomware incident. Technical containment, legal reporting and evidence preservation are running in parallel; none should silently destroy the others.

02:13 — Endpoint tooling raises an alert involving a privileged service credential and unusual remote execution activity.
02:27 — Multiple file shares begin showing renamed and encrypted files.
02:31 — A ransom note appears claiming that 450 GB of company data was copied before encryption.
02:38 — The SOC confirms a ransomware incident affecting several systems and isolates network segments.
02:52 — Network telemetry shows unusually high outbound traffic from one affected server during the preceding period. The destination and content are not yet established.
03:10 — The most recent connected backup replica is affected; an older offline backup appears available.
03:25 — Legal and senior incident leadership are briefed. The team begins a formal evidence and reporting log.
Clock trap: do not assume the CERT-In clock starts only when lawyers, the board or investigators finish confirming root cause. The 28 April 2022 Direction speaks of reporting listed incidents within six hours of noticing them or being brought to notice about them. Ransomware is among the Annexure-I incident types.

First-hour evidence plan

Contain without erasing

Isolation may be necessary, but document what was disconnected, by whom, when, and what volatile/native evidence may be lost by shutdown or reimaging.

Preserve control-plane records

Collect identity, EDR, firewall, VPN, cloud, DNS, authentication and relevant application logs with native timestamps/timezone context.

Separate encryption from exfiltration

Encryption is observed. Exfiltration is presently a claim plus circumstantial network evidence. Treat them as different propositions until the record supports the second.

Build a decision log

Record notice time, reporter, containment decisions, preservation choices, reporting actions, business impact and the evidence supporting each conclusion.

Decision 6 · What is the reporting approach?

What does the record prove?

ItemSafe propositionDo not silently infer
Encrypted filesSystems/files were altered into an encrypted/unusable state during the incident window.Who did it, initial access vector, or whether data was stolen.
Ransom noteAn artefact containing a threat/claim was placed on affected systems.That the claimed 450 GB was actually exfiltrated.
Outbound traffic spikeA system generated/received an unusual volume of network traffic in the period recorded.That the bytes were personal data, the complete dataset, or were received by the attacker claimed in the note.
Privileged credential eventThe credential/account was used in recorded system activity.The identity of the human operator or whether the credential owner participated.

Decision 7 · The ransom note claims exfiltration. What do you tell management?

CERT-In: the Directions name service providers, intermediaries, data centres, body corporate and Government organisations, and require listed incidents to be reported within six hours of noticing or being brought to notice. The FAQ permits available information first with additional information later. Apply the instrument to the actual organisation and incident.
DPDP commencement gate — 5 October 2026: the principal substantive processing/security/breach provisions scheduled for the eighteen-month phase are not yet operative; the notification schedules that phase for 13 May 2027. Use the DPDP Practitioner as readiness analysis for this hypothetical date, and re-check commencement for a real incident.
Offence-mapping trap: ransomware does not automatically equal “cyber terrorism.” Start with proved conduct and statutory ingredients; do not escalate labels beyond the evidence.
MATTER PREVIEW

CYB-004 · Cloud Intrusion

Proposed record

Admin sign-ins, token/session use, bulk object access, cloud audit exports, identity-provider logs and endpoint evidence.

Core question

Does a valid token prove the authorised employee acted, or only that the system accepted a credential/session?

Full build target

Cloud provenance, provider retention, cross-border evidence, production requests, BSA route and competing attribution hypotheses.

Preview only. No assessment or completed evidence locker is claimed in this release.
MATTER PREVIEW

CYB-005 · Messaging Impersonation

Proposed record

Message export, profile/account identifiers, phone/SIM records, payment instructions, device artefacts and witness verification practice.

Core question

What proves personation, and what proves that the accused—not merely an account or number—made the representation?

Full build target

Platform records, message completeness, §90 limits, personation ingredients, money trail and defence attack on authorship.

Preview only. It is clickable so the learner gets a meaningful chambers brief rather than a dead card.
MATTER PREVIEW

CYB-006 · Contested Attribution

Proposed record

Shared laptop, VPN exit IP, reused credentials, router/DHCP evidence, endpoint timeline and inconsistent witness accounts.

Core question

How many inferential steps separate a network/account observation from a finding about the human actor?

Full build target

Prosecution and defence theory boards, alternative hypotheses, expert cross-examination and appellate record preservation.

Preview only. The full matter will be promoted only after evidence, law and runtime QA gates are complete.

Offence Mapping Workbench

Do not charge by keyword. Test each statutory ingredient against evidence.

ProvisionWhy it may matterWhat still needs proof
IT Act §43 / §66Unauthorised computer-resource conduct may engage §43; dishonest or fraudulent commission of a §43 act is the criminal route under §66.The actual act, lack/excess of authority, relevant mental element, and linkage to the accused.
IT Act §66CPotential identity-theft route where another person's password or other unique identification feature is fraudulently or dishonestly used.Use of the protected feature and attribution to the accused.
IT Act §66DPotential route where cheating by personation occurs through a communication device or computer resource.Personation, cheating, use of the relevant technology and accused linkage.
BNS §318General cheating analysis, including dishonest inducement to deliver property.Deception, inducement, mental element, delivery/harm and attribution.
BNS §319General cheating-by-personation provision.The representation/personation and the accused's participation.
Excluded trap: IT Act §66A is not taught as a live offence.
Overlap discipline: the existence of both IT Act and BNS provisions does not mean every cyber-fraud FIR, charge or prosecution automatically satisfies every provision. Start with ingredients and facts.

Decision 2 · What does A04 prove?

Digital Investigation Chambers

BNSS §94

Production can extend to documents, electronic communications and communication devices likely to contain digital evidence. Ask: who has possession or power, and exactly what should be sought?

BNSS §105

The specified search/seizure process must be recorded through audio-video electronic means, preferably mobile phone, with the statutory forwarding requirement.

BNSS §106

Police power to seize property suspected stolen or found in circumstances creating suspicion of an offence. Do not collapse seizure into final confiscation.

BNSS §107

Separate proceeds-of-crime attachment/restoration procedure involving approval and the Court/Magistrate. Keep this analytically distinct from §106.

BNSS §185

Search by an investigating police officer requires the statutory grounds and record; the search is to be audio-video recorded as specified.

Preservation request builder

Ask with precision: account identifier; transaction/UTR; relevant time window and timezone; device-registration events; authentication events; IP/network fields if actually logged; beneficiary identifiers; SIM-change records; KYC/onboarding records; complaint/report timestamps; and native/system records where available.

Do not ask a provider to certify a fact its system does not record. Do not describe a dynamic IP address as a person. Do not describe KYC identity as proof of the human actor at a later transaction.

Electronic Evidence Bridge

BSA §§61–63

Electronic/digital records are not excluded merely because of their form. The §63 route and certificate requirements must be analysed for the computer output being tendered.

BSA §90

The electronic-message presumption is limited. It does not permit the Court to presume the identity of the person who sent the message.

Attribution

Ask separately: whose account, whose device, whose credential, whose network connection, whose conduct, whose knowledge?

Cross-module: continue to the GNU Legal Electronic Evidence Practitioner for the full §63 certificate, provenance, expert-evidence and trial-proof workbench. For privacy/regulatory analysis, open the DPDP Practitioner.

Decision 3 · Prosecution says “the accused’s KYC account received the money, therefore the accused committed the phishing.”

Incident & Regulatory Response

Individual financial-fraud response

Prompt bank notification and prompt reporting through the Government financial-cyber-fraud mechanism are time-sensitive practical steps. Preserve the acknowledgement, transaction identifiers and supporting evidence.

1930 NCRP BANK FRAUD CHANNEL

RBI customer-liability analysis

Do not promise reimbursement. Identify the regulated entity, the applicable RBI framework, whether the transaction was unauthorised, the cause category, when the customer received transaction communication, when the customer reported it, and the bank's applicable policy.

CERT-In gate

For a covered organisation, test whether the incident falls within the CERT-In reporting directions and the applicable six-hour reporting clock. Do not mechanically apply an organisational CERT-In duty to every individual fraud victim.

DPDP commencement gate

As of 5 October 2026: the principal substantive DPDP processing/security/breach regime scheduled for the eighteen-month phase is not yet operative. Treat it as readiness analysis for incidents occurring before commencement, not as a present breach-notification duty.

Re-check before relying on this statement after 13 May 2027 or after any intervening notification/amendment.

INVESTIGATION & DRAFTING CHAMBERS

From Incident Record to Legal Work Product

This desk trains the transition from facts and artefacts to a defensible next step. It does not manufacture certainty: every draft must preserve the difference between what the record shows, what is inferred, and what remains unproved.

Authority guardrail: these are training workpads, not court summonses, police orders, FIRs, warrants or filed pleadings. In particular, the BNSS §94 tool below is a planning worksheet; the statutory summons/written-order power belongs to the Court or officer in charge of a police station, not to a private learner-generated document.

Complaint / FIR Issue-Spotter

Convert a narrative into chronology, loss/impact, evidence held, evidence missing, competing hypotheses and offence ingredients—without asserting an identity the record has not proved.

Preservation Request

Build a precise, non-compulsory preservation request: systems, custodians, time window, timezone, native format, metadata and routine-deletion risk.

BNSS §94 Production Plan

Plan what a competent authority may need to seek from a person in possession or power of documents, electronic communications, communication devices likely to contain digital evidence, or other things.

Search / Seizure Review

Pressure-test the record against BNSS §§105, 106, 107 and 185: recording, seizure reporting, proceeds-of-crime attachment and recorded search grounds.

Case Theory Ladder

1 · OBSERVATIONWhat did the source actually record?
2 · TECHNICAL INFERENCEWhat does that event reasonably suggest?
3 · IDENTITY INFERENCEWhat links the account/device/network event to a human?
4 · LEGAL INFERENCEWhich statutory ingredient may the proved fact support?
5 · CONCLUSIONWhat can responsibly be alleged, challenged or left open?
Non-negotiable: IP ≠ person; account ≠ actor; KYC ≠ participation; malware note ≠ proof of exfiltration; receipt of funds ≠ proof of the antecedent deception.

Interactive Drafting Desk

Everything runs locally in the browser. Free-text entered here is not persisted by this page. Do not paste confidential client material into a training environment unless your organisation permits it.

✓ Official-source legal core checkedTRAINING WORKPAD
Choose a matter and workpad, then generate. The output will separate facts, inferences, authority limits and evidence gaps.

BSA handoff

Before a computer output becomes trial proof, plan the BSA §§61–63 route. Section 63(4)(c) uses the statutory Schedule certificate; the Schedule separates Part A (Party) and Part B (Expert) and includes source/device/hash particulars.

Attribution handoff

Build corroboration before converting a system event into a human allegation: device possession, credential access, telecom/provider records, endpoint artefacts, money movement, witness evidence and alternative explanations.

Regulatory handoff

For organisational incidents, keep CERT-In reporting analysis separate from criminal proof. For DPDP, apply the commencement clock before teaching a future obligation as a present duty.

Learning Counsel · Senior Cybercrime Counsel

The learning counsel now follows you throughout the workbench as a floating chambers dock. It is section- and matter-aware: when you enter CYB-002, CYB-003 or the Investigation & Drafting Chambers, its prompts switch to the evidence, attribution and work-product problem in that context. It can explain the current section, question your reasoning, expose weaknesses, argue as opposing counsel, or pressure-test you from the Bench.

Use it as a senior, not an answer key. Make your decision first. Then ask the counsel to challenge the inference, identify the missing evidence, or test what the record actually proves.

Verified Source Layer

The core statutory and regulatory propositions used in this workbench were checked against primary/official materials current to the legal-source review date. Fictional matter facts are training scenarios, not assertions about a real incident. Drafting tools are educational workpads and do not purport to exercise statutory powers.

TierAuthorityUse in this chamber
PRIMARY LAWInformation Technology Act, 2000 — India Code consolidated text§§43, 66, 66C, 66D, 67C, 70B, 75, 77B, 78; §66A guardrail.
PRIMARY LAWBharatiya Nyaya Sanhita, 2023§§318–319 cheating/personation analysis.
PRIMARY LAWBharatiya Nagarik Suraksha Sanhita, 2023§§94, 105–107, 185 production/search/seizure/attachment architecture and drafting guardrails.
PRIMARY LAWBharatiya Sakshya Adhiniyam, 2023§§61–63, statutory §63 Schedule certificate, and §90 electronic-message presumption.
OFFICIAL DIRECTIONCERT-In Directions dated 28 April 2022 + official FAQCovered-entity incident reporting and six-hour clock.
OFFICIAL GOVERNMENTNational Cyber Crime Reporting Portal / I4C1930, financial-fraud reporting and complaint evidence.
REGULATORYReserve Bank of India customer-protection directionsUnauthorised electronic-banking transaction liability analysis.
OFFICIAL INDUSTRY SYSTEMNPCI UPI guidanceUPI mechanics and bank-facing fraud complaint route.
PRIMARY LAW / NOTIFICATIONDPDP Act 2023 + 2025 commencement notification and RulesCommencement gate; future-readiness bridge.
Legal currency: always re-check live statutes, notifications, directions and binding authorities before professional reliance or filing.