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Posts in 'IT security' category

The status of TrueCrypt

I wish I knew where TrueCrypt stands now, but I don’t. I follow TrueCrypt and regularly endorse it  ever since I discovered it and wrote this post nine years ago. TrueCrypt was, and may still be, the most sensible and presumably-secure volume and full-disk encryption software for Windows; also supporting Linux and Mac. A few days ago the project discontinued, and users were directed to alternative, non-open-source solutions.

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OpenSSL "Heartbleed" bug: what's at risk on the server and what is not

A few days ago, a critical bug was found in the common OpenSSL library. OpenSSL is the library that implements the common SSL and TLS security protocols. These protocols facilitate the encrypted tunnel feature that secure services – over the web and otherwise – utilize to encrypt the traffic between the client (user) and the server.

The discovery of such a security bug is a big deal. Not only that OpenSSL is very common, but the bug that was found is one that can be readily exploited remotely without any privilege on the attacker’s side. Also, the outcome of the attack that is made possible is devastating. Exploiting the bug allows an attacker to obtain internal information, in the form of memory contents, from the attacked server or client. This memory space that the attacker can obtain a copy of can contain just about everything. Almost.

There are many essays and posts about the “everything” that could be lost, so I will take the optimistic side and dedicate this post to the “almost". As opposed to with other serious attacks, at least the leak is not complete and can be quantified, and the attack is not persistent.

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CyberTech 2014

I attended CyberTech 2014 on January 27th-28th. CyberTech is a respectable conference for technologies related to cyber-security. The conference consisted of lectures and an exhibition. The lectures were most given by top notch speakers from the security space, both from the public sector and from the private sector; most being highly ranked executives. The exhibition sported companies ranging from the largest conglomerates as IBM and Microsoft, to garage start-ups.

I am easy to disappoint by cyber-security conferences. Simply put, there are more cyber-security conferences than what the security industry really has to say. This implies that for the security architect or practitioner, most cyber-security conferences lack sufficient substance. I take CyberTech 2014 with mixed emotions too. The exhibition showed interesting ideas, especially by start-ups, while the lectures left more to wish for.

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How risky to privacy is Apple's fingerprint reader?

Congratulations to Apple for featuring a fingerprint reader as part of its new iPhone. It was reported by The Wall Street Journal here, in the blog of Bruce Schneier here, by Time Tech here, and in dozens of other places. Very much expectedly, this revelation spurred anxiety among the conspiracy theorists out there. The two common concerns that were raised are:

  • Apple will have a database of all our fingerprints.

  • What if someone breaks into the device and gets at our fingerprint?

(There is another line of concern, related to the fifth amendment and how its protection may be foiled by authenticating using biometrics alone, but this is a legal concern which is off topic.)

While a bit of paranoid thinking is always helpful, security engineering requires more than crying out each time a mega-corporate launches a new technology that involves private data. Assets and threats need to be determined, and then we can decide whether or not the risk is worth the benefits.

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