I came across this article about smart devices on Alternet, which tells us that “we are far from a digital Orwellian nightmare.” We’re told that worrying about smart televisions, smart phones, and smart meters is for “conspiracy theorists.”
It’s a great case study in not having a security mindset.
This is what David Petraeus said about the Internet of Things at the In-Q-Tel CEO summit in 2012, while he was head of the CIA:
Items of interest will be located, identified, monitored, and remotely controlled through technologies such as radio-frequency identification, sensor networks, tiny embedded servers, and energy harvesters—all connected to the next-generation Internet using abundant, low cost, and high-power computing—the latter now going to cloud computing, in many areas greater and greater supercomputing, and, ultimately, heading to quantum computing.
In practice, these technologies could lead to rapid integration of data from closed societies and provide near-continuous, persistent monitoring of virtually anywhere we choose. “Transformational” is an overused word, but I do believe it properly applies to these technologies, particularly to their effect on clandestine tradecraft. Taken together, these developments change our notions of secrecy and create innumerable challenges—as well as opportunities.
In-Q-Tel is a venture capital firm that invests “with the sole purpose of delivering these cutting-edge technologies to IC [intelligence community] end users quickly and efficiently.” Quickly means 3 years, for their purposes.
It’s been more than 3 years since Petraeus made those remarks. “Is the CIA meeting its stated goals?” is a fair question. Evil space lizards are an absurd conspiracy theory, for comparison.
The concerns are confidently dismissed:
Digital Trends points out that smart televisions aren’t “always listening” as they are being portrayed in the media. In fact, such televisions are asleep most of the time, and are only awaken [sic] when they hear a pre-programmed phrase like “Hi, TV.” So, any conversation you may be having before waking the television is not captured or reported. In fact, when the television is listening, it informs the user it is in this mode by beeping and displaying a microphone icon. And when the television enters into listening mode, it doesn’t comprehend anything except a catalog of pre-programmed, executable commands.
Mistaken assumption: gadgets work as intended.
Here’s a Washington Post story from 2013:
The FBI has been able to covertly activate a computer’s camera — without triggering the light that lets users know it is recording — for several years, and has used that technique mainly in terrorism cases or the most serious criminal investigations, said Marcus Thomas, former assistant director of the FBI’s Operational Technology Division in Quantico, now on the advisory board of Subsentio, a firm that helps telecommunications carriers comply with federal wiretap statutes.
Logically speaking, how does the smart TV know it’s heard a pre-programmed phrase? The microphone must be on so that ambient sounds and the pre-programmed phrases can be compared. We already know the device can transmit data over the internet. The issue is whether or not data can be transmitted at the wrong time, to the wrong people. What if there was a simple bug that kept the microphone from shutting off, once it’s turned on? That would be analogous to insufficient session expiration in a web app, which is pretty common.
The author admits that voice data is being sent to servers advanced enough to detect regional dialects. A low-profile third party contractor has the ability to know whether someone with a different accent is in your living room:
Can we trust that the encryption is done correctly, and nobody’s stolen the keys? Can we trust that the third parties doing natural language processing haven’t been compromised?
The Alternet piece has an anecdote of someone telling the author to “Never plug your phone in at a public place; they’ll steal all your information.” Someone can be technically unsophisticated but have the right intuitions. The man doesn’t understand that his phone broadcasts radio waves into the environment, so he has an inaccurate mental model of the threat. He knows that there is a threat.
Then this passage:
A few months back, a series of videos were posted to YouTube and Facebook claiming that the stickers affixed to cellphone batteries are transmitters used for data collection and spying. The initial video showed a man peeling a Near Field Communication transmitter off the wrapper on his Samsung Galaxy S4 battery. The person speaking on the video claims this “chip” allows personal information, such as photographs, text messages, videos and emails to be shared with nearby devices and “the company.” He recommended that the sticker be removed from the phone’s battery….
And that sticker isn’t some nefarious implant the phone manufacturer uses to spy on you; it’s nothing more than a coil antenna to facilitate NFC transmission. If you peel this sticker from your battery, it will compromise your smartphone and likely render it useless for apps that use NFC, like Apple Pay and Google Wallet.
As Ars Technica put it in 2012:
By exploiting multiple security weakness in the industry standard known as Near Field Communication, smartphone hacker Charlie Miller can take control of handsets made by Samsung and Nokia. The attack works by putting the phone a few centimeters away from a quarter-sized chip, or touching it to another NFC-enabled phone. Code on the attacker-controlled chip or handset is beamed to the target phone over the air, then opens malicious files or webpages that exploit known vulnerabilities in a document reader or browser, or in some cases in the operating system itself.
Here, the author didn’t imagine a scenario where a someone might get a malicious device within a few centimeters of his phone. “Can I borrow your phone?” “Place all items from your pockets in the tray before stepping through the security checkpoint.” “Scan this barcode for free stuff!”
Finally, the Alternet piece has this to say about smart meters:
In recent years, privacy activists have targeted smart meters, saying they collect detailed data about energy consumption. These conspiracy theorists are known to flood public utility commission meetings, claiming that smart meters can do a lot of sneaky things like transmit the television shows they watch, the appliances they use, the music they listen to, the websites they visit and their electronic banking use. They believe smart meters are the ultimate spying tool, making the electrical grid and the utilities that run it the ultimate spies.
Again, people can have the right intuitions about things without being technical specialists. That doesn’t mean their concerns are absurd:
The SmartMeters feature digital displays, rather than the spinning-usage wheels seen on older electromagnetic models. They track how much energy is used and when, and transmit that data directly to PG&E. This eliminates the need for paid meter readers, since the utility can immediately access customers’ usage records remotely and, theoretically, find out whether they are consuming, say, exactly 2,000 watts for exactly 12 hours a day.
That’s a problem, because usage patterns like that are telltale signs of indoor marijuana grow operations, which will often run air or water filtration systems round the clock, but leave grow lights turned on for half the day to simulate the sun, according to the Silicon Valley Americans for Safe Access, a cannabis users’ advocacy group.
What’s to stop PG&E from sharing this sensitive information with law enforcement? SmartMeters “pose a direct privacy threat to patients who … grow their own medicine,” says Lauren Vasquez, Silicon Valley ASA’s interim director. “The power company may report suspected pot growers to police, or the police may demand that PG&E turn over customer records.”
Even if you’re not doing anything ambiguously legal, the first thing that you do when you get home is probably turning the lights on. Different appliances use different amounts of power. By reporting power consumption at higher intervals, smart meters can give away a lot about what’s going on in a house.
That’s not the same as what you were watching on TV, but the content of phone conversations isn’t all that’s interesting about them, either.
It’s hard to trust things.