Category Archives: General

A default category for posts that don’t seem to fit into a more specific area.

What Are “Homoglyph” Attacks?

As the phrase has started becoming more widely used, it seems worthwhile to explain just what exactly “homoglyph attacks” are. It is perhaps a bit extreme to call them “attacks” as they are effectively used to deceive … especially in … Continue reading

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Twitter: The Trustworthiness of The Blue Tick

If you have not heard, Twitter suffered some sort of incident recently (yesterday at the time of writing) where a number of high profile accounts were used to send out “tweets” suggesting that if you pay them some money (in … Continue reading

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VPN or GlobalProtect Performance Issues

On occasions over the last few months, IS has been contacted with regard to network performance issues in relation to the VPN (the GlobalProtect VPN). As a result we have built up some recommendations that may be helpful to others … Continue reading

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Working From Home

For some reason there seems to be a bit of an increase in interest in working from home and so it seems rather timely to produce some advice. Not so much the technical side of things, but general advice from … Continue reading

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Let’s Encrypt Certificates – Are They Broken?

Short answer: No. There is a news story going around about an issue with certificates issued by Let’s Encrypt. The certificates themselves are in fact perfectly fine, but they were issued when they should not have been. If the owners … Continue reading

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German University Forced To Reset All Passwords

According to this story in The Register (the source material is reasonably enough in German), one of our German competitors has recently been forced to reset every single account password causing significant queues for service. Plus a significant amount of … Continue reading

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Keeping Secret Google Meetings Secret

It is possible that some people are unaware (certainly I wasn’t; at least not this week) that it is possible that information about meetings can be seen not by looking at someone’s shared diary but looking at the room booked. … Continue reading

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‘Shoulder Surfing’ or Is Your Screen Showing Others Information It Shouldn’t?

Every time I travel by train during working hours, I get reminded of the old “shoulder surfing” attack; a surprising number of people are working away on their laptops seeming unaware that anyone peaking over their shoulders has a good … Continue reading

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DNS Firewalls: What They Are, and What They’re Not

This posting is really a description of so-called “DNS Firewalls” intended for those who have to deal with security vendors regularly. Having said that, there are DNS firewalls for home users (I cannot make any specific recommendations), so it may … Continue reading

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University Passes Cybersecurity Re-assessment

After a great deal of work from a number of people, the University has successfully renewed our CyberEssentials Plus certification. This means :- We are assured that we have met a level of IT security. Not that it means we … Continue reading

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