Websites will soon be forced to identify people who have posted defamatory messages online.
New government proposals say victims have a right to know who
is behind malicious messages without the need for costly legal battles.
The powers will be balanced by measures to prevent false claims in order to get material removed.
But privacy advocates are worried websites might end up divulging user details in a wider range of cases.
Last week, a British woman won a court order forcing Facebook to identify users who had harassed her.
Nicola Brookes had been falsely branded a paedophile and drug dealer by users - known as trolls - on Facebook.
Facebook, which did not contest the order, will now reveal
the IP addresses of people who had abused her so she can prosecute them.
The new powers, to be added to the Defamation Bill, will make
this process far less time-consuming and costly, the government said.
Complying with requests would afford the website greater protection from being sued in the event of a defamation claim.
End to 'scurrilous rumour'
Currently, in legal terms, every website "hit" - visit - on a defamatory article can be counted as a separate offence.
This means many websites remove articles as soon as a defamation claim is made - either rightly or wrongly.
"Website operators are in principle liable as publishers for
everything that appears on their sites, even though the content is often
determined by users," said Justice Secretary Ken Clarke.
"But most operators are not in a position to know whether the
material posted is defamatory or not and very often - faced with a
complaint - they will immediately remove material.
"Our proposed approach will mean that website operators have a
defence against libel as long as they identify the authors of allegedly
defamatory material when requested to do so by a complainant."
Mr Clarke said the measures would mean an end to "scurrilous
rumour and allegation" being posted online without fear of adequate
punishment.
"The government wants a libel regime for the internet that
makes it possible for people to protect their reputations effectively
but also ensures that information online can't be easily censored by
casual threats of litigation against website operators.
"It will be very important to ensure that these measures do
not inadvertently expose genuine whistleblowers, and we are committed to
getting the detail right to minimise this risk."
Privacy concerns
But Privacy International, an organisation that campaigns at
an international level on privacy issues, says that there is a concern
that "gun-shy website operators will start automatically divulging user
details the moment someone alleges defamation in order to shield
themselves from libel actions".
"A great deal of the content posted by internet trolls is not
actually defamatory, instead constituting harassment, invasion of
privacy or simply unpleasant but lawfully-expressed opinion," said Emma
Draper, head of communications at Privacy International.
"However, if the choice is between protecting users'
anonymity and avoiding a potentially costly lawsuit, many small
operators are not going to be overly concerned about whether or not a
user has genuinely defamed the complainant."
(bbc)