Stealth marketing refers to a certain type of marketing strategy that is done without the acknowledgment of the people, who are being marketed to.
Undercover marketing or stealth marketing, in simplest terms, is a marketing strategy where marketers introduce a product to the target audience in such a way that it doesn't look like advertising. Marketers try to convey the message in “hidden words” without looking obvious.
Stealth marketing might seem a bit risky sometimes, but no one can ignore all the positive outcomes it brings with the risk being undertaken
An indirect way of marketing products, stealth marketing focuses on creating buzz among the audience as a whole without letting people realize that products are actually being marketed to them.
Some examples of stealth marketing are hiring actors to subtly promote products to the public, sockpuppeting, paying influencers to post about a product or service without disclosing that it's actually an ad, creating fake viral videos, and product placement in movies.
There are lots of stealth marketing techniques, which is known as one of the most popular being item placement and undercover marketing. And you can see that stealth marketing aims to generate instant sales and create excitement and interest, which can make your customers more and more receptive to get advertisements directed later.
So, it's like a company or brand, will launch a product and will start advertising it to you, but will not let you understand how exactly these brands are reaching to you or influencing you to turn people into potential customers of the product.