Business Insider: One of the most popular Chrome extensions is selling its users' bandwidth, largely without their knowledge — and it can be used by hackers to maliciously attack websites.
Maximum PC: Hola, a popular VPN add-on for browsers, found itself bathed in hot water recently after it came to light that it had inadvertently sold users' bandwidth to a botnet. Users were understandably pissed off that their resources were funding something malicious, and some users didn't understand that by using the free service, they were agreeing to let Hola tap into their bandwidth. It all added up to a PR nightmare, and in response to it all, Hola is being a lot more transparent. The company is also going to implement a bug bounty program in hopes of making its service more secure.
"Yo dawg I heard you liked botnet applications so I put a botnet extension within your botnet broswer"
What a pity, it was a nice VPN extension.