Optus’ filter can be defeated by ‘trivial’ DNS change

(Delimiter) The nation’s second-largest telco Optus this afternoon confirmed users would be able to defeat its implementation of a blacklist filter of sites containing child pornography merely by changing the DNS settings on their PC. [….] However, in a brief statement this morning, Optus confirmed industry speculation that its filter could be defeated through a minor setting change on Internet users’ PCs. “That’s correct,” a spokesperson said, when asked if users could circumvent Optus’ filter by setting their PC to use a different DNS server than the default. “It’s a feature of the Interpol list.” Read more

related: Filters also blocked poker sites, YouTube, Wikipedia, euthanasia sites, Christian sites, a tour operator and a Queensland dentist.