For a time, the trend of advertising on the Internet was carried through pop-ups, windows that were displayed and that sometimes even led to sound. In those days there were no extensions for browsers and the Internet and, in fact, Chrome did not exist yet. Opera and Firefox were quick to implement the default pop-up blocker, and even Internet Explorer was added soon after. Its popularity was then monopolized by display advertising, with banners that are inserted within the same pages and that allow their owners to monetize their content. Sometimes these are very well integrated ads that do not affect the user at all. In others, the format is so abused that it greatly annoys the user. Various solutions arose to avoid them, the most popular currently being extensions for browsers as AdBlockers.
What danger do we face if we install AdBlockers
These blockers are extensions that, once installed in the browser, are based on lists to tell the browser what it should not load, for example, if we enter a page and it indicates that it wants to connect to a server known to spy on the user, the extension can block it.
However, and like every time we install something on our computer or browser, these extensions can also open a different attack vector; It’s something that security researcher Armin Sebastian has discovered.
The security researcher explains that if the attacker knows which pages we usually visit, the attack will be much easier, of course. The attack involves modifying the list that blockers use to block or redirect requests; for example, if someone gets control over these lists.
