Our website disappeared this afternoon and is still offline. Really really frustrating as we are so reliant on it: that's how clients can see what's in stock and place their orders.
According to our hosting service (here in Singapore), their servers have been hit by a "distributed denial-of-service" (DDOS) attack. Sounds scary, huh? Basically, the internet server gets swamped with useless traffic until it drowns. The motives vary but usually someone is trying to prevent an Internet site or service from functioning. It seems unlikely that we are the target since hundreds of sites are down. (By the way, major sites such as Amazon, Yahoo and eBay have been shut down by this kind of attack in the past - so we're in good company!)
Postscript: In theory, our hosting service got us back online about 8 hours later but due to the wait time for "DNS propagation" it was mid-morning of the next day before the site actually became usable. It seems all ISPs are vulnerable to this kind of attack but clearly we'll have to investigate whether there is any form of backup we can employ in future.