One of the most frequent causes of investor complaints against stock brokers is the allegation that trades were executed without the client's knowledge or authorisation. Such disputes often involve significant financial consequences and expose brokers to regulatory action, arbitration proceedings, reputational damage, and civil liability.

SEBI has consistently emphasised that stock brokers must establish robust systems to ensure that every trade is executed only pursuant to a valid client instruction. More importantly, brokers must be able to demonstrate, through reliable documentary or electronic evidence, that proper authorisation existed at the time the order was placed.

Accordingly, preventing unauthorised trading is not merely an operational responsibility but a critical compliance obligation involving client communication, record preservation, internal controls, dealer supervision, technology governance, and audit trails.

This article explains the regulatory expectations relating to prevention of unauthorised trading, the evidence that brokers should maintain, and the governance practices necessary to minimise regulatory and litigation risk.

What is Unauthorised Trading?

Unauthorised trading generally refers to execution of a transaction without a valid instruction or authority from the client.

Examples may include:

placing orders without client approval;
executing trades beyond the client's instructions;
trading in an incorrect quantity or security;
unauthorised discretionary trading;
misuse of trading credentials;
dealer-initiated trades without instructions; or
misuse of dormant client accounts.

Each complaint is examined based upon the specific facts and supporting evidence.

Why Does SEBI Treat Unauthorised Trading Seriously?

Unauthorised trades directly affect investor confidence and market integrity.

Accordingly, SEBI's regulatory framework seeks to:

protect investor interests;
ensure proper client consent;
improve accountability;
strengthen audit trails;
reduce trading disputes;
prevent fraud;
improve governance; and
enhance confidence in regulated intermediaries.

The burden often falls on the broker to demonstrate that trades were properly authorised.

Client Authorisation is Fundamental

Every trade should originate from a valid client instruction.

Depending upon the mode of dealing, authorisation may be received through:

electronic trading platforms;
authenticated mobile applications;
recorded telephone conversations;
written instructions where applicable;
approved digital communication channels; or
other recognised order placement mechanisms.

The broker should ensure that the source of every instruction can subsequently be verified.

Importance of Documentary Evidence

Merely asserting that a client placed an order is rarely sufficient.

The broker should maintain evidence capable of demonstrating:

who placed the order;
when the instruction was received;
how it was communicated;
what order was authorised;
who executed the order; and
when the trade was confirmed.

Strong documentary evidence substantially reduces dispute risk.

Electronic Audit Trails

Modern trading systems generate valuable audit trails.

These may include:

login records;
IP address information where available;
order timestamps;
user identification;
order modification history;
cancellation logs;
execution reports; and
system-generated confirmations.

Electronic audit trails are often critical during regulatory investigations.

Telephone Orders

Where orders are accepted over telephone, brokers should maintain appropriate recordings in accordance with the applicable regulatory requirements.

The recordings should enable verification of:

client identity;
order instructions;
date and time of communication;
dealer handling the order; and
the instructions actually received.

Incomplete or missing recordings frequently weaken a broker's defence in dispute proceedings.

Confirmation and Communication

Following execution of trades, brokers should ensure timely communication through prescribed channels, including:

contract notes;
trade confirmations;
SMS alerts where applicable;
email communications;
ledger updates; and
client portal notifications.

Prompt communication allows clients to report discrepancies without delay.

Internal Controls

Stock brokers should implement internal controls covering:

dealer supervision;
maker-checker processes;
restricted access controls;
user authentication;
order monitoring;
exception reporting;
surveillance reviews; and
periodic compliance testing.

Strong operational controls significantly reduce unauthorised trading risks.

Responsibilities of the Compliance Officer

The Compliance Officer should oversee:

review of order management systems;
monitoring of client complaints;
periodic audit of order records;
verification of evidence preservation;
staff training;
reporting of material compliance issues;
implementation of corrective actions; and
review of recurring operational deficiencies.

Regular monitoring strengthens regulatory compliance.

Documentation Requirements

Stock brokers should maintain comprehensive records relating to:

client agreements;
KYC documentation;
order instructions;
call recordings where applicable;
electronic audit trails;
trade confirmations;
contract notes;
dealer logs;
investigation reports; and
grievance records.

These records frequently become crucial during inspections, arbitration, or litigation.

Regulatory Inspections

During inspections, SEBI and the Stock Exchanges may examine:

order management systems;
dealer controls;
call recordings;
audit trails;
complaint registers;
client communications;
surveillance reports;
internal audits; and
compliance monitoring procedures.

The ability to produce complete evidence is often more important than merely asserting compliance.

Common Compliance Mistakes

Regulators frequently observe deficiencies such as:

absence of supporting evidence;
incomplete call recordings;
poor documentation;
weak dealer supervision;
inadequate audit trails;
delayed investigation of complaints;
inconsistent client communication; and
ineffective internal controls.

These deficiencies significantly increase regulatory and litigation exposure.

Best Compliance Practices

Stock brokers should establish:

board-approved order handling policies;
comprehensive evidence preservation procedures;
automated audit trail retention;
dealer monitoring systems;
periodic compliance audits;
maker-checker controls;
staff training programmes;
management reporting; and
continuous review of SEBI and Stock Exchange circulars.

Strong governance over order authorisation significantly reduces compliance risk.

Practical Compliance Takeaway

In disputes involving alleged unauthorised trading, evidence determines outcomes. Brokers that maintain complete audit trails, reliable communication records, proper order documentation, and effective internal controls are substantially better positioned to demonstrate compliance with regulatory expectations.

Accordingly, every brokerage should treat evidence preservation as a core governance function rather than merely an operational activity.

Conclusion

Preventing unauthorised trading is one of the most important investor protection responsibilities imposed upon stock brokers. SEBI expects brokers not only to obtain valid client authorisation before executing trades but also to preserve sufficient evidence demonstrating that such authorisation genuinely existed. Robust documentation, electronic audit trails, call recordings, and effective internal controls together form the foundation of regulatory compliance in this area.

For stock brokers, the objective should not simply be to defend complaints after they arise but to build systems that minimise the possibility of unauthorised trading occurring in the first place. A strong evidence framework protects investors, strengthens governance, and significantly reduces regulatory and litigation risk.

How Anuj Desai & Associates Can Help

Anuj Desai & Associates advises Stock Brokers, Clearing Members, Depository Participants, Alternative Investment Funds (AIFs), Portfolio Managers, Investment Advisers, Research Analysts, FinTech companies, and other SEBI-regulated intermediaries on securities law, governance, investor protection, and regulatory compliance.

Our services include:

Advisory on SEBI requirements relating to order authorisation, client communication, and evidence preservation.
Review of order management systems, audit trails, dealer supervision frameworks, and operational controls.
Drafting and review of SOPs, compliance manuals, surveillance procedures, and record retention policies.
Internal audits and regulatory inspection readiness assessments.
Gap analysis of order handling processes and governance frameworks.
Assistance in responding to SEBI, Stock Exchange, and Clearing Corporation observations.
Review of complaint handling procedures involving alleged unauthorised trading.
End-to-end compliance support for SEBI-regulated intermediaries.

Whether you are strengthening your order management framework, reviewing evidence preservation procedures, implementing dealer controls, or preparing for a SEBI or Stock Exchange inspection, Anuj Desai & Associates provides practical, technically robust, and regulator-focused advisory solutions that help market intermediaries maintain regulatory compliance while protecting investor interests.

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Unauthorised Trading Prevention — The Evidence Standard Brokers Must Maintain