Aside

2019.1.17

Nothing quite like starting the day by refreshing a password that was apparently compromised, and then trying to determine where/how the operators might have obtained the login credentials in the first place. Still, props to Google’s AI systems for detecting the aberrant login attempt and blocking it, as well as for password managers which make having unique login credentials for every service so easy to manage/replace.

Link

The Problems With Smartphone Password Managers

In today’s era of hyperbolic security warnings one of the easiest things that people can do to ‘protect’ themselves online is select super hard passwords to crack, stuff them in a centralized password manager, and then only have to remember a single password to access the rest in the manager. I’ve used a password manager for some time and there are real security benefits: specifically, if a single service that I’ve registered with is hacked then my entire online life isn’t compromised, just that one service.

Password manager companies recognize the first concern that most people have surrounding their services: how do the managers protect the sensitive information they’re entrusted with? The standard response from vendors tends to reference ‘strong security models and usage of cryptography. Perhaps unsurprisingly, it is now quite apparent that the standard responses really can’t be trusted.

In a recent paper (.pdf), researchers interrogated the security status of password managers. What they found is, quite frankly, shocking and shameful. They also demonstrate the incredible need for third-party vetting of stated security capabilities.

The abstract for the paper is below but you should really just go read the whole paper (.pdf). It’s worth your time and if you’re not a math person you can largely skim over the hard math: the authors have provided a convenient series of tables and special notes that indicate the core deficiencies in various managers’ security stance. Don’t use a password manager that is clearly incompetently designed and, perhaps in the future, you will be more skeptical of the claims companies make around security.

Abstract:

In this paper we will analyze applications designed to facilitate storing and management of passwords on mobile platforms, such as Apple iOS and BlackBerry. We will specifically focus our attention on the security of data at rest. We will show that many password keeper apps fail to provide claimed level of protection

Access the paper (.pdf)

The Problems With Smartphone Password Managers

Quote

Phone hacking, for the most part, depends on remote access. Hackers obtain unprotected phone numbers from a variety of sources – Facebook must be a favorite – or by social engineering. PINs, for the most part, are easy to guess. Hacking typically takes place in the legitimate user’s absence.

Unless Apple or Google plans to bar remote access to devices, facial recognition security surely only solves a small part of the problem. Back to the drawing board.

~Kim Davis, from Internet Evolution

Link

Passwords: uniqueness, not complexity

Graham argues that there are three tiers of sites and that you should apply variable password policies to each tier. The key lesson is to have unique passwords across the tiers so that a tier 3 site being hacked doesn’t endanger your tier 1 sites. You probably want unique passwords for each tier 1 site.

At the first tier is your e-mail account. Since a hack of your e-mail account means hackers can reset passwords on all your other accounts, it would be terrible if that password were lost. This should both be very complex, as well as wholly unrelated to any other accounts.

At the second tier are important e-commerce sites, like Amazon.com, NewEgg,com, Apple.com, and so on. The major sites are unlikely to be hacked. You could probably share the same password for all these accounts.

At the third tier are the unimportant accounts, like StratFor, where it wouldn’t be catastrophic if your password were lost. Again, you could choose a third, simple password, like “passwd1234” for all these accounts. It’ll probably get stolen within a year, but who really cares?

While I agree, in part, I still think that a highly complex passphrase (not password) and a strong password daemon like 1 Password is probably the best approach for most people. That way you can enjoy strong, unique, passwords and generate new ones for each account you open.

Link

ContraRISK: Bad password advice

contrarisk:

In the December issue of Computer Fraud & Security, an article by Prof Steven Furnell – ‘Assessing password guidance and enforcement on leading websites’ – presents some fascinating original research into the password practices of various leading websites – and also paints a somewhat…

Whenever I read about bad passwords, I’m reminded of XKCD’s comic on password strengths.