ELI5: Explain Like I'm 5

Open-source intelligence

Open-source intelligence (or OSINT) is when people use publicly available sources to find information. These sources could be things like websites, news reports, social media, videos, and images. For example, if you were looking for information on a company's new product, you could try looking at their website, published news articles, and social media posts. This is a way to gather information without having special access to it.