TalkTalk, the UK's second largest broadband provider has long been critical of the Government's planned "three strikes and you're out" online piracy law. And now BT, the UK's biggest broadband provider and Virgin Media have expressed their concerns too.
The latest changes to the proposed law would give TV and music companies the right to demand that broadband providers (ISPs) block access to websites that host pirated material.
But the broadband providers are very worried that this could lead to poorly controlled censorship, with innocent broadband customers potentially losing their broadband service, with little right to appeal.
Simon Milner, group director of industry policy at BT said: "ISPs would feel compelled to block a site simply because a rights holder claims there is infringing material on it, rather than because of a court decision."
And Andrew Heaney, executive director of strategy and regulation at TalkTalk said: "We fear it could also be a backdoor to censorship of the internet."
Whilst Virgin Media, the UK's largest fibre-optic broadband provider added: "We are concerned that, as they stand, the proposals could increase costs and penalise ISPs."