Hackers

Facebook has not responded to requests for comment about the picture, shared to celebrate Instagram reaching its 500 million monthly user milestone.

FBI director James Comey has previously said he also covers his laptop's webcam to prevent hackers spying on him.

And digital rights group the Electronic Frontier Foundation (EFF) said it regularly sold its webcam "stickers".

Jani, from Finland, became the youngest ever recipient of Instagram's "bug bounty" prize. The glitch he discovered let him delete other users' comments.

He reported it to Instagram owner Facebook, which awarded him the prize after verifying and then fixing the bug.

It's all the more impressive given that, according to the site's policy, Jani won't even be old enough to join Instagram until he's 13.

With hackers increasingly targeting Facebook as a primary source of collecting user information, and corporations using your information to make decisions about your rates (see this article about insurance companies raising premiums of social media users), you really should have a plan for protecting yourself.

Here are some tips to prevent getting hacked:

Anonymous also posted a video, confirming the message was in response to the events in Paris.

They just wheedled their way past his service providers' customer service agents to take command of all his accounts.

Joe Giron told the BBC that he discovered altered admin settings on his personal router on 28 September.

The compromised router was hacked to send web browsing data to a malicious internet address.

Netgear says the vulnerability is "serious" but affects fewer than 5,000 devices.

Mr Giron found that the Domain Name System (DNS) settings on his router had been changed to a suspicious IP address.

"Normally I set mine to Google's [IP address] and it wasn't that, it was something else," he said.

The Trump Hotel Collection said on its website that hackers gained access to its systems between May 2014 and June 2015 at the front desk of those hotels. Hotel restaurants and gift shops were also hacked.

The hotel operator said an independent forensic investigation has not found any evidence of customer's information being misused. The company is offering affected customers a year of free identity theft protection.

Compared to the connected devices of the past, the gazillions of new IoT devices that are being predicted for our homes, transportation, cities, medical devices and elsewhere represent a unique set of security challenges for both companies and their users.

The Office of Personnel Management says more than 19 million who had applied for background investigations were affected. The government also said nearly 2 million people were also affected who weren't applicants, but rather their spouses or other family members.