SD memory cards do not pose as many risks as USB memory sticks

SD memory cards do not pose as many risks as USB memory sticks

Whilst it is commonly understood that the SD card is not as robust as the USB memory stick, it does however usually present less of an issue where security of sensitive data is concerned.

Leaving aside the subject for the potential loss of data through damage sustained to the actual memory card, something that is well documented in other sources, and so is broadly understood, the fact remains that the SD card is not exposed to as many risks as its USB counterpart.

Both devices are used in commercial settings and are therefore equally as likely to carry subject matter that is commercially valuable. Professional photographers use SD cards to save their images for example, and so one SD card alone can carry data that has a value that equates to thousands of pounds. The same is true of the USB memory stick. A single device can carry a suite of reports with a commercial value that also extends into the thousands.

The formats themselves are extremely stable, and have been developed with a view to provide a reliable result. However, the fact that USB memory sticks are used in conjunction with devices that can be infected with viruses means that they are exposed to risks that do not affect the use of SD cards in the main.

Towards the end of 2009, USB memory sticks helped to spread a Windows worm that was reported to have infected as many as ten million computers globally. The virus was known by a number of names; Kido, Conficker and Downadup, and at its height it was reputed to have infected as many as one million computers per day, according to F-Secure, a computer anti-virus specialist.

It was a particularly virulent virus in that it could bury its way deeply into the operating systems of Windows enabled computers, thus making it very difficult to eradicate the problem once it had struck. The deeper that something is embedded within an operating system, the more difficult it is to restore it to its usual function.

One of the reasons that the worm spread so effortlessly is that unsuspecting computer users were sharing data via their USB memory sticks, not realising that they were spreading the worm from one computer to another.

There are now new SD cards that are able to connect to the internet, and there are also a number of handheld computers that are issued with SD card slots. Nevertheless, SD cards to not present much of a risk where the transfer of infected data is concerned. This is mainly due to the fact that the products that generally support SD cards are not targeted by hackers, who are responsible for creating the worms, and so the risk is significantly reduced. Also, the vast majority of SD cards are not wifi-enabled.

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