Those browsers could cover a hacker's tracks to illegal sites or hide a hacker's anonymous attacks through the Web.
The music industry has undertaken a sizable campaign over several years to see illegal sites and services put out of business.
More than half the users who stopped using illegal sites said they now preferred legal services such as the UK-headquartered Spotify.
It might mean Google could avoid making more alterations to its search results to disadvantage illegal sites, the report said.
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"Relying on an automated process is remarkably lax and typing key words into Google can show up illegal sites quite quickly, " says online security adviser, Reg Walker.
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Newport was said to be the Welsh county with the largest number of illegal Gypsy sites.
Some 24 illegal biodiesel sites have been shut down by Revenue and Customs officers in the last 11 months.
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The organisation recommended that companies stop advertising on illegal music sites and urged search engine providers to prioritise search results relating to legal services.
Internet service providers would escape prosecution if they took steps to remove illegal gambling sites from their servers or blocked access to sites hosted elsewhere.
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It is believed there are dozens of illegal dump sites containing tens of thousands of tons of rotting rubbish from household bins and industry across Ireland.
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The case involved the illegal dumping of waste at three locations in Caernarfon, one of which is believed to have been one of the biggest illegal landfill sites in north Wales.
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Work should also be done to see if there are technical means that can oversee where people go online and warn them about illegal or harmful sites they may visit.
Such actions are illegal and against the sites' terms of service.
Sewers can contain dangerous gases, subway systems can have unpredictable train schedules, abandoned buildings can be crumbling or have asbestos, and usually it is illegal to access the sites.
According to the survey, double the number of people who had used illegal file-sharing sites would be prepared to pay for music compared to those that had never used such services.
Last December, the commissioner ruled that the Partnership Investment Programme, which aids the clearance and renovation of derelict city sites, was an illegal state aid.
Rep. Bob Barr (R-Ga.) has criticized a recent Securities and Exchange Commission proposal to monitor chat rooms and Web sites for signs of illegal stock trading.
There are some 600 Web sites that look suspiciously like illegal pyramid storefronts, according to a Federal Trade Commission survey last year.
In spite of assurances from the Egyptian authorities that armed guards were monitoring the sites and ensuring no more illegal digging could take place, we saw no evidence of that.
For its part, the BPI has said that it would oppose any service that heavily relied on copyright infringement, but would be willing to help sites shift away from "illegal downloading".
Suffice to say, there are still numerous sites around the globe offering up illegal APKs.
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The settlements relate to college students who had been selling illegal copies of Microsoft's software through auction sites out of Sacramento, California and Chicago, Illinois.
Illegal artisanal mining is already impacting several of the sites and the attribution of new oil and mining concessions could threaten their World Heritage status.
It is a complicated issue, and while I come down on the futurist side of the debate and think that for the most part piracy is overblown and the overreaction is much scarier, I do think there is a legitimate complaint to be made and some of these sites are obviously engaged in unethical and illegal activity.
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Vandals are posting pictures of their graffiti on social media sites, according to officials, making the illegal handiwork more popular and exacerbating the problem.
Supporters of the amendment to the Act for Information say it will help the authorities block sites containing images of child abuse and other illegal material.
Copyright defenders, including the British recorded music industry body BPI, have argued that illegal copies of films, books and music made available on file-sharing sites destroy creative industry jobs and discourage investment in new talent.
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Athletic departments now monitor social networking Web sites, and cellphones are collected at the door of college parties to try to keep embarrassing or illegal moments off the Internet.
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