In both a 2021 essay and my 2022 book, A Hacker’s Mind , I talk about AIs finding vulnerabilities and exploits—hacking—the legal system.
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Researchers have calculated the quantum computer size necessary to break 256-bit elliptic curve public-key cryptography: Finally, we calculate the number of physical qubits required to break the 256-bit elliptic curve encryption of keys in the Bitcoin network within the small available time frame in which it would…
Former TSA Administrator Kip Hawley wrote an op-ed pointing out the security vulnerabilities in the TSA’s PreCheck program: The first vulnerability in the system is its enrollment process, which seeks to verify an applicant’s identity. We know verification is a challenge: A 2011 Government Accountability Office report…
In his 2008 white paper that first proposed bitcoin, the anonymous Satoshi Nakamoto concluded with: “We have proposed a system for electronic transactions without relying on trust.” He was referring to blockchain, the system behind bitcoin cryptocurrency. The circumvention of trust is a great promise, but it’s just…
Two years ago, Americans anxious about the forthcoming 2024 presidential election were considering the malevolent force of an election influencer: artificial intelligence. Over the past several years, we have seen plenty of warning signs from elections worldwide demonstrating how AI can be used to propagate…
At a security conference recently, the moderator asked the panel of distinguished cybersecurity leaders what their nightmare scenario was. The answers were the predictable array of large-scale attacks: against our communications infrastructure, against the power grid, against the financial system, in combination with…
Ars Technica gave three experts a 16,000-entry encrypted password file, and asked them to break them. The winner got 90% of them, the loser 62%—in a few hours. The list of “plains,” as many crackers refer to deciphered hashes, contains the usual list of commonly used passcodes that are found in virtually every breach…
There’s really no such thing as security in the abstract. Security can only be defined in relation to something else. You’re secure from something or against something. In the next 10 years, the traditional definition of IT security—that it protects you from hackers, criminals, and other bad guys—will undergo a…
I’m really getting tired of stories like this: Computer disks and USB sticks were dropped in parking lots of government buildings and private contractors, and 60% of the people who picked them up plugged the devices into office computers. And if the drive or CD had an official logo on it, 90% were installed. Of course…
I have heard stories of more aggressive interrogation of electronic devices at US border crossings. I know a lot about securing computers, but very little about securing phones. Are there easy ways to delete data—files, photos, etc.—on phones so it can’t be recovered? Does resetting a phone to factory defaults erase…
Last week, revelation of yet another NSA surveillance effort against the American people has rekindled the privacy debate. Those in favor of these programs have trotted out the same rhetorical question we hear every time privacy advocates oppose ID checks, video cameras, massive databases, data mining, and other…
From Betty Medsger’s book on the 1971 FBI burglary (page 22): As burglars, they used some unusual techniques, ones Davidon enjoyed recalling years later, such as what some of them did in 1970 at a draft board office in Delaware. During their casing, they had noticed that the interior door that opened to the draft…
The storyline: TSA screener finds two pipes in passenger’s bags. Screener determines that they’re not a threat. Screener confiscates them anyway, because of their “material and appearance.” Because they’re not actually a threat, screener leaves them at the checkpoint. Everyone forgets about them. Six hours later, the…
A real-world one-way function: Alice and Bob procure the same edition of the white pages book for a particular town, say Cambridge. For each letter Alice wants to encrypt, she finds a person in the book whose last name starts with this letter and uses his/her phone number as the encryption of that letter. To decrypt…
News that the Transportation Security Administration missed a whopping 95% of guns and bombs in recent airport security “red team” tests was justifiably shocking. It’s clear that we’re not getting value for the $7 billion we’re paying the TSA annually. But there’s another conclusion, inescapable and disturbing to…
We know from the Snowden documents (and other sources) that the NSA taps the Internet backbone through secret agreements with major US telcos., but the US government still hasn’t admitted it. In late August, the Obama administration declassified a ruling from the Foreign Intelligence Surveillance Court. Footnote 3…
David Kahn has died. His groundbreaking book, The Codebreakers, was the first serious book I read about codebreaking, and one of the primary reasons I entered this field. He will be missed. EDITED TO ADD (2/4): Funeral website. EDITED TO ADD (2/10): New York Times obituary.
More Snowden documents analyzed by the Guardian—two articles—discuss how the NSA collected e-mails and data on Internet activity of both Americans and foreigners. The program might have ended in 2011, or it might have continued under a different name. This is the program that resulted in that bizarre tale of Bush…
It’s over. The voting went smoothly. As of the time of writing, there are no serious fraud allegations, nor credible evidence that anyone tampered with voting rolls or voting machines. And most important, the results are not in doubt. While we may breathe a collective sigh of relief about that, we can’t ignore the…
I have a confession to make: I am a complete Bruce Schneier fanboy. I have been following the cryptographer, Harvard lecturer and privacy specialist for many years, and was delighted to meet him face-to-face at last week’s RSA Conference in San Francisco, where he gave a keynote (registration required) on how to…
Long news article (alternate source) on iPhone privacy, specifically the enormous amount of data your apps are collecting without your knowledge. A lot of this happens in the middle of the night, when you’re probably not otherwise using your phone: IPhone apps I discovered tracking me by passing information to third…
Over the past few weeks, Zoom’s use has exploded since it became the video conferencing platform of choice in today’s COVID-19 world. (My own university, Harvard, uses it for all of its classes. Boris Johnson had a cabinet meeting over Zoom.) Over that same period, the company has been exposed for having both lousy…
Back in March, Rolf Weber wrote about a potential vulnerability in the WhatsApp protocol that would allow Facebook to defeat perfect forward secrecy by forcibly change users’ keys, allowing it—or more likely, the government—to eavesdrop on encrypted messages. It seems that this vulnerability is real: WhatsApp has the…
How often should you change your password? I get asked that question a lot, usually by people annoyed at their employer’s or bank’s password expiration policy: people who finally memorized their current password and are realizing they’ll have to write down their new password. How could that possibly be more secure…
Sometimes mediocre encryption is better than strong encryption, and sometimes no encryption is better still. The Wall Street Journal reported this week that Iraqi, and possibly also Afghan, militants are using commercial software to eavesdrop on U.S. Predators, other unmanned aerial vehicles, or UAVs, and even piloted…
This is an excellent lesson in the security problems inherent in trusting proprietary software: After two years of attempting to get the computer based source code for the Alcotest 7110 MKIII-C, defense counsel in State v. Chun were successful in obtaining the code, and had it analyzed by Base One Technologies, Inc…
China is the world’s most successful Internet censor. While the Great Firewall of China isn’t perfect, it effectively limits information flowing in and out of the country. But now the Chinese government is taking things one step further. Under a requirement taking effect soon, every computer sold in China will have to…
The United Arab Emirates—Dubai, etc.—is threatening to ban BlackBerrys because they can’t eavesdrop on them. At the heart of the battle is access to the data transmitted by BlackBerrys. RIM processes the information through a handful of secure Network Operations Centers around the world, meaning that most governments…
In at least three U.S. states, it is illegal to film an active duty policeman: The legal justification for arresting the “shooter” rests on existing wiretapping or eavesdropping laws, with statutes against obstructing law enforcement sometimes cited. Illinois, Massachusetts, and Maryland are among the 12 states in…
It used to be that just the entertainment industries wanted to control your computers—and televisions and iPods and everything else—to ensure that you didn’t violate any copyright rules. But now everyone else wants to get their hooks into your gear. OnStar will soon include the ability for the police to shut off your…
Now this is clever: “I came across the ad that was for a prevailing wage job for $28.50 an hour,” said Mike, who saw a Craigslist ad last week looking for workers for a road maintenance project in Monroe. He said he inquired and was e-mailed back with instructions to meet near the Bank of America in Monroe at 11 a.m…