Security

Security in the virtual world: online, computers and software security.

Leaving your wi-fi network open

Leaving your wi-fi network open

Bruce Schneier (a leading US computer security expert) and Electronic Frontier Foundation (EFY) advise leaving your wi-fi network open: meaning, not use encryption protocols such as WEP or WPA2. This allows neighbours and passers-by to use it while in urgent need, and increases societal cooperation. EFY states: “If you sometimes find yourself needing an open [...]

Wrenched back a hacked email account: and lesson learnt

Wrenched back a hacked email account: and lesson learnt

I always advised people to enter random text in response to lost password questions – and keep the password written somewhere safe so you never forget. This incident changed my view point. Read on… This incident happened to a friend of mine a couple of days back. He woke up one morning to find himself [...]

Internet censorship and loss of privacy

Internet censorship and loss of privacy

An excellent essay by Bruce Schneider on government organized initiatives worldwide to reduce internet privacy and for censorship. There is also evidence that criminals can (mis)use such infrastructure for their own purpose. Please click here to read.             Every year brings more Internet censorship and control — not just in countries like China and Iran, [...]

False sense of security

False sense of security

  http://www.e-signature.com/ provides logo and signature embedded fonts. Per se, there is nothing wrong with the service, and is useful for people who need it. However, a look at the website throws up the claims below. Each one has a quote from me below it on the truth behind the statement. Imagine being able to [...]

Scripted thumbnail generation: security perspective

Scripted thumbnail generation: security perspective

While searching for something on the net, I came across some scripts that generate image thumbnail on the fly. For example: http://tech.mikelopez.info/2006/03/02/php-image-resize-script/. While using such scripts we should be aware of the security point of view: your site can easily become a proxy for other people or websites.

Remembering your passwords

Remembering your passwords

In today’s online world we have to remember a lot of passwords. Security advice is that they must all be different (so that if one account is compromised, we don’t loose the security of all accounts), and be changed every now and then. It is sometimes difficult to cope with such requirements, without writing down [...]