[Sarah Blumpkin]

zeer interessant en uitgebreid artikel door Al Jazeera:

Tunisia's bitter cyberwar
http://english.aljazeera.net/indepth...145839362.html

Thousands of Tunisians have taken to the streets in recent weeks to call for extensive economic and social change in their country.

Among the fundamental changes the protesters have been demanding is an end to the government's repressive online censorship regime and freedom of expression.

That battle is taking place not just on the country's streets, but in Internet forums, blogs, Facebook pages and Twitter feeds.

The Tunisian authorities have allegedly carried out targeted "phishing" operations: stealing users passwords to spy on them and eradicate online criticism. Websites on both sides have been hacked.

Anonymous, the loosely-knit group of international web activists that drew world attention for their "denial of service" (DDoS) attacks on the servers of companies that blocked payments and server access to the whistle-blowing website, WikiLeaks, joined the fray, in solidarity with the Tunisian uprising.

Most international news organisations have no presence in the country (and, some say, a lack of interest in the protests). Media posted online by Tunisian web activists has been some of the only material that has slipped through the blackout, even if their videos and photos haven't led to quite the same enthusiastic coverage by Western media of the Iranian protest movement in 2009.

The first attempted hijacking of his Facebook account happened last week.

"Here we don't really have Internet, we have a national intranet"

Azyz Amamy, Tunisian web activist

"My personal account on the Facebook, including around 4200 friends, was exposed to failed hacking attempt last Friday, but I quickly recovered it after an unidentified person had taken control of it," he told Al Jazeera.

Then, on Monday, Chourabi was locked out of his Facebook and Gmail accounts.

Chourabi says he believes the Tunisian Internet Agency is responsible for hijacking his accounts. The agency has blocked access to his Facebook wall since October 2009, and his blogs are also unreachable from within Tunisia.

Several of his friends have contacted Facebook and Google asking for his accounts to be returned, to no avail.

"I think it is high time for Facebook and Google to take serious steps to protect Tunisian activists and journalists," he said in an interview via email, using a new account.

Facebook is working to ensure it can respond to all its users, Stefano Hesse, Facebook's head of communications for Europe, the Middle East and Africa, told Al Jazeera.

"One thing needs to be clear: we, as Facebook, are not censoring any content, and we had not been approached by the local government in order to do anything regarding anyone," Hesse said via email.

Google did not respond to requests for comment from Al Jazeera.

Several sources Al Jazeera spoke with said web activists have been receiving anonymous phone calls, warning them to delete critical posts on their Facebook pages or face the consequences.

Sami Ben Gharbia, who monitors Tunisia's web censorship for the OpenNet Initiative, said that Google and Facebook are in no way complicit in the sophisticated phishing technique.

The initial signs that something was underway came on Saturday, he said, when the secure https protocol became unavailable in Tunisia. This forced web users to use the non-secure http protocol.

The government's internet team then appears to have gone phishing for individuals' usernames and passwords on services including Gmail, Facebook, Yahoo and Hotmail.

Web activists and journalists alerted others of the alleged hacking by the government via Twitter, which is not susceptible to the same types of operations.

"The goal, amongst others, is to delete the Facebook pages which these people administer," a Tunisian internet professional, who has also been in contact with Anonymous, told Al Jazeera in an emailed interview.

The same source, who asked to remain unidentified due to the potential consequences for speaking out, said that in communication with the international group, he had come up with a Greasemonkey script for FireFox internet browsers that deactivates the government's malicious code.

The script had been installed 1,669 times at the time of writing.

"It isn't like China and Gmail several months ago, where China attacked Gmail," the web professional said in an email, referring to last year's incident when Chinese hackers allegedly broke in the accounts of Chinese dissidents.

"This is much more intelligent (and I’m proud of this intelligence!). It's the communication with Gmail [and the other sites] that is intercepted," he said.

The Committee to Protect Journalists says there is clear proof that the phishing campaign is organised and co-ordinated by the Tunisian government, as did other sources that Al Jazeera spoke with.

Al Jazeera discussed "OpTunisia" with a group of the online activists on Tuesday. The operation began when one Anon spent last weekend "spamming" the forum, drawing support from activists around the world.

The Tunisian government first drew the Anons' ire, they say, when it extended its pervasive filtering to WikiLeaks.

"The thing that did it for us, was initially their censoring of WikiLeaks, when WikiLeaks reports on .tn came out," one participant in the forum wrote in response to questions from Al Jazeera, referring the Tunisia-based website that had been set up to host the WikiLeaks memos.

With their collective gaze turned to Tunisia, the Anons came into contact with Tunisian web activists.

"We did initially take an interest in Tunisia because of WikiLeaks, but as more Tunisians have joined they care more about the general internet censorship there, so that's what it has become," another Anon said.

It's hard to generalise the Anons' diverse range of motivations and ever-changing targets, but most appear to share an outrage over the Tunisian government's censorship and phishing activities, and a sense of solidarity with Tunisian web users.

Attacking government-linked websites is much more dangerous for those living within Tunisia, they noted, who risk arrest if they are identitied by the authorities.

"Although many Tunisians understandably do not feel comfortable participating in this operation out of precaution, I estimate there [were] about 50 Tunisians participating, to whom we provide the means and knowledge to properly secure their online behaviour from exposure to their government," one Anon activist wrote in email.