The companies Google Inc, Microsoft Corp, Apple Inc, Facebook Inc, Twitter, LinkedIn Corp, Yahoo Inc and AOL Inc issued an open letter to U.S. President Barack Obama and Congress to bring in reforms and restrictions on surveillance activities.
Documents leaked by former spy agency contractor Edward Snowden revealed that the National Security Agency had penetrated and perhaps targeted some of the companies, prompting Microsoft, Google and Yahoo to increase the amount of encryption.
The letter said the companies understood that governments need to protect their citizens' safety and security, but they believed the current laws and practices need to be reformed.
The 'Reform Government Surveillance' campaign details five major concerns including limiting governments' authority to collect users' information, transparency about government demands and avoiding conflicts among governments.
"The security of users' data is critical, which is why we've invested so much in encryption and fight for transparency around government requests for information," Google CEO Larry Page was quoted on the website.
"This is undermined by the apparent wholesale collection of data, in secret and without independent oversight, by many governments around the world. It's time for reform and we urge the U.S. government to lead the way."
In a step aimed at reassuring nervous users abroad, last week, Microsoft pledged to fight in court any attempt by U.S. intelligence agencies to seize its foreign business customers' data under American surveillance laws.
© Thomson Reuters 2013