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Dutch government to let law enforcement hack foreign computers

Dutch government to let law enforcement hack foreign computers

Agencies could get investigative powers that involve hacking, installing spyware and destroying data

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The Dutch government wants to give law enforcement authorities the power to hack into computers, including those located in other countries, for the purpose of discovering and gathering evidence during cybercrime investigations.

In a letter that was sent to the lower house of the Dutch parliament last week, the Dutch Minister of Security and Justice Ivo Opstelten outlined the government's plan to draft a bill in upcoming months that would provide law enforcement authorities with new investigative powers on the internet.

According to the letter, the new legislation would allow cybercrime investigators to remotely infiltrate computers in order to install monitoring software or to search them for evidence. Investigators would also be allowed to destroy illegal content, like child pornography, found during such searches.

These investigative powers would not only cover computers located in the Netherlands, but also computers located in other countries, if the location of those computers cannot be determined.

However, if the investigators can establish that a computer of interest is located in a foreign country, they will have to ask for assistance from the authorities in that country.

In his proposal, Opstelten used a case in which investigators from the Dutch National Police infiltrated "hidden" Tor websites that hosted child pornography, as an example of a situation in which the geographical location of the computers couldn't be determined.

The Tor network allows its users to set up so-called "hidden services" that are only accessible from within the network using special addresses. When accessing such a service, a user's connection is routed through several random Tor nodes, which prevents him from determining the real Internet Protocol (IP) address of the server hosting the service.

The Dutch police investigation referenced by Opstelten in his letter took place in August 2011 and two of the infiltrated Tor websites were hosted on servers located in the US.

The new legislation will provide strict safeguards for the proposed investigative powers, Opstelten said. Law enforcement authorities will only be able to exercise such powers when investigating offenses that carry a maximum prison sentence of four years or more and only after obtaining authorisation from a judge, he said. Furthermore, all such actions will be automatically logged and the logs will be accessible for later review.

Cybercrime is a serious problem that needs to be tackled, but the proposed measures are not the right ones and they pose a serious risk to cybersecurity, said Ot van Daalen, the director of Dutch digital rights organisation Bits of Freedom.

First of all, allowing police investigators to hack computers in other countries might encourage other governments to introduce similar legislation, but not necessarily with the same limitations, van Daalen said. "This could escalate into a digital arms race."

The proposed legislation would create an incentive for governments to keep software vulnerabilities secret because they would need to exploit those vulnerabilities to attack systems used by cybercriminals, van Daalen said.

There are already security companies and independent researchers that sell zero-day exploits - exploits for unpatched vulnerabilities - to governments instead of reporting the vulnerabilities to vendors. In addition, some governments have openly admitted to developing military cyberoffensive capabilities.

Van Daalen believes that expanding the potential use of such exploits by law enforcement agencies will help the zero-day exploit market grow, which in turn will result in fewer vulnerabilities being reported and patched.

Governments could also pressure vendors to delay fixing vulnerabilities, van Daalen said. An example of this was when the Dutch government convinced Microsoft to delay the blacklisting of the DigiNotar digital certificates on Windows computers in the Netherlands for a few days in order to allow the government to take measures, despite the fact that the issue represented a security risk for all Windows users in the country, he said.

"There's no doubt that there's already a growing (and disquieting) market in the for-fee disclosure and exploitation of vulnerabilities, and this proposal could certainly further legitimise it: the possible advantages in terms of action against criminals (leaving aside ethical objections) have to be balanced against the likely, deleterious effects on the community of internet users as a whole," said David Harley, a senior research fellow at antivirus vendor ESET.

Harley agrees with van Daalen that the proposed legislation could have a global impact. "It's not possible to guarantee that the effects of these measures will be restricted to criminal elements: if the proposal succeeds in its present form, collateral damage in terms of the application of monitoring and attack technologies could be worldwide," he said.

"Is it really feasible to take this approach effectively without breaching the sovereignty of other states? Even if agreement could be reached with other states on international legislation, does this proposal take into account the quid pro quo of giving foreign agencies such sweeping rights of access to the systems of its own citizens?," Harley asked. "It seems to me that there's a parallel here with the fact that many in the US seem quite happy with alleged cyberespionage and sabotage against Iran yet show surprise and discontent that those claims have been used as justification for similar action by other nations."

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