If you go to a coffee shop or at the airport, and you're using open wireless, I would use a VPN service that you could subscribe for 10 bucks a month. Everything is encrypted in an encryption tunnel, so a hacker cannot tamper with your connection.

Apple and Google want to create encryption for which they could not provide you the key. Their business model will not survive if the American government has a special relationship with them that requires them to surrender this kind of information.

Before even getting to David Cameron's father here's a starting-point question about the Panama Papers: how is the desire to break the anonymity of Panama banking secrecy different from the FBI's interest in breaking Apple's encryption of the iPhone?

Encryption plays a fundamental role in protecting us all online. It is key to growing the digital economy and delivering public services online. But, like many powerful technologies, encrypted services are used and abused by a small minority of people.

Without encryption, you and I wouldn't be able to do our banking online. We wouldn't be able to buy things online, because your credit cards - they've probably been ripped off anyway, but they would be ripped off left and right every day if there wasn't encryption.

Apple chief executive Tim Cook is such a respected figure that it's easy to overlook the basic problem with his argument about encryption: Cook is asserting that a private company and the interests of its customers should prevail over the public's interest as expressed by our courts.

Now, with a warrant, they can always go to the information service provider and attempt to get that information. But even then, they may not be able to because the party selling the encryption services may be a third party and may not even know who the parties are that are communicating.

The government does things like insisting that all encryption programs should have a back door. But surely no one is stupid enough to think the terrorists are going to use encryption systems with a back door. The terrorists will simply hire a programmer to come up with a secure encryption scheme.

Companies spend millions of dollars on firewalls, encryption, and secure access devices and it's money wasted because none of these measures address the weakest link in the security chain: the people who use, administer, operate and account for computer systems that contain protected information.

Since Snowden went public, companies such as Apple and Google - two of the world's most valuable companies - have incorporated much greater encryption into their products and have also been at pains to show that they will not go along with U.S. government demands to access their encrypted products.

In this age of communications that span both distance and time, the only tool we have that approximates a 'whisper' is encryption. When I cannot whisper in my wife's ear or the ears of my business partners, and have to communicate electronically, then encryption is our tool to keep our secrets secret.

I disagree with Apple on many things - such as its exclusive use of proprietary software and arbitrary restrictions on users seeking to copy, share, edit, and create software on their devices. However, I strongly feel that defending its users' and customers' right to strong encryption in court is incredibly important.

A company can spend hundreds of thousands of dollars on firewalls, intrusion detection systems and encryption and other security technologies, but if an attacker can call one trusted person within the company, and that person complies, and if the attacker gets in, then all that money spent on technology is essentially wasted.

While we should not hesitate to deploy encryption to protect ourselves from cybercriminals, this should not be done in a way that eviscerates society's ability to defend itself against other types of criminal threats. In other words, making our virtual world more secure should not come at the expense of making us more vulnerable in the real world.

As all of our lives become digital, the logic of encryption is all of our lives will be covered by strong encryption, and therefore all of our lives - including the lives of criminals and terrorists and spies - will be in a place that is utterly unavailable to court-ordered process. And that, I think, to a democracy should be very, very concerning.

It may be true that encryption makes certain investigations of crime more difficult. It can close down certain investigative techniques or make it harder to get access to certain kinds of electronic evidence. But it also prevents crime by making our computers, our infrastructure, our medical records, our financial records, more robust against criminals. It prevents crime.

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