What if the ten people praising a stock market expert inside your WhatsApp group were not genuine investors at all?

What if their impressive profit screenshots were fabricated, and their glowing recommendations were designed to make you trust someone you had never met?

India’s market regulator has issued a fresh warning about exactly this type of deception, highlighting a tactic known as astroturfing.

On October 22, 2026, the Securities and Exchange Board of India cautioned investors against fraudulent stock tips and trading recommendations circulated through invitation-only WhatsApp groups.

According to SEBI, unregistered individuals are operating these groups while presenting themselves as experienced market experts.

Many of the operators reportedly use overseas mobile numbers and attract investors by promising free market education and profitable trading opportunities.

The problem is not simply that the recommendations may be unreliable. SEBI says some of the apparent success stories inside these groups may be deliberately fabricated.

Certain members allegedly coordinate with the operators to publish false profit claims and messages praising the supposed experts.

This practice is called astroturfing because it creates the appearance of genuine, widespread support where that support may actually be manufactured.

Imagine a group where one member announces a large profit, another thanks the administrator for an excellent recommendation, and several others immediately agree.

A new investor entering the group may interpret those messages as independent evidence that the administrator has a successful trading record.

But if those accounts are working together, the apparent consensus becomes a tool for manipulating confidence.

SEBI’s warning is particularly important because these groups often target people who are searching for stock market guidance but may not know how to verify the credentials of an adviser.

The regulator has also identified another unusual tactic: fraudulent groups may reappear under new names after an earlier group is suspended or shut down.

Existing members can receive messages claiming that the previous group was banned because of social media platform restrictions. They are then invited to join a replacement group promising daily stock recommendations and trading guidance.

SEBI considers this pattern a warning sign rather than evidence that the group is trustworthy. The regulator has also cautioned investors against opening accounts on trading platforms or applications recommended by unknown WhatsApp group operators.

Investors have been warned not to transfer money through such arrangements or disclose sensitive information about their trading accounts and shareholdings.

The advisory comes shortly after a major Enforcement Directorate investigation into suspected stock manipulation involving R&B Denims Limited and R M Drip and Sprinklers Systems Limited.

On October 16, the ED searched 29 premises across six cities as part of an investigation into an alleged pump-and-dump operation.

Investigators said the two companies had issued more than 3.5 crore shares and convertible warrants through preferential allotments between April 2023 and March 2024.

The agency suspects that a network of connected individuals and entities acquired shares before coordinated promotional campaigns generated additional retail demand.

WhatsApp communities carrying names such as Multibagger Stocks allegedly circulated repeated buying recommendations between late December 2025 and February 2026.

According to investigators, retail participation in the two shares expanded dramatically, from approximately 3,400 investors to more than one lakh. The ED alleges that preferential allottees used the increased buying interest to sell part of their holdings to retail investors.

After the promotional groups disappeared, the shares reportedly experienced severe selling pressure and lost approximately 70% of their value within days.

The ED subsequently froze trading accounts holding assets worth approximately ₹200 crore as part of its investigation. These remain allegations under investigation, and the freezing of assets does not establish a final finding of guilt.

The timing of SEBI’s latest advisory makes the wider issue especially relevant, although the October 22 warning addresses fraudulent WhatsApp stock-tip groups generally rather than announcing a new finding against those two companies.

For retail investors, the most dangerous aspect of these schemes is that manufactured popularity can look remarkably similar to genuine market enthusiasm.

A stock receiving dozens of recommendations in a private group may appear attractive even when there has been no corresponding improvement in its financial performance.

Likewise, a screenshot showing an extraordinary trading profit cannot independently establish that the transaction occurred or that the person sharing it earned the claimed return.

SEBI has urged investors to verify the registration status of market intermediaries and use authentic trading applications rather than relying on claims made by unknown group administrators.

The broader lesson from the advisory and the ED investigation is that social proof is not a substitute for verified financial information.

Before trusting a stock recommendation, investors need to distinguish independently supported business developments from excitement created by anonymous messages.

SEBI’s latest warning puts a spotlight on a simple but increasingly important question: when a WhatsApp group appears full of successful investors, how many of those success stories are actually real?