I believe I have been spammed 

Dear H. LANGWEG, I am the editor-in-chief of Who’s Who in the World, and I have received your name through a private nomination process. I’m writing to ask if you would provide us with information about your personal and professional accomplishments for possible inclusion in the book. Inclusion in Who’s Who in the World indicates […]

Overprepared 

We hosted some visitors from Germany this week. When they prepared for their trip to Norway, they asked their local bank for Norwegian currency. Usually, you can retrieve cash from ATMs in many places in Norway, and paying cashless is quite common. But, nevertheless, just in case it would not have been possible to equip […]

Malfunctioning public displays in Tromsø 

I was in Tromsø this week to attend NISK 2011. NISK is a young conference, started in 2008, and is co-located with NIK and NOKOBIT and NISK stands for Norsk Informasjonssikkerhetskonferanse. I presented a paper on hiding files on USB memory sticks, and two of „my“ students presented work on malware detection and removal tools […]

Interactive error message on unattended device, again 

I was returning from Cork, Ireland, via Heathrow recently. One of the shops in the newest terminal building T5 featured a video screen with a fashion show, probably to entice waiting passengers to leave their money at the store. Centered in the video was an error message claiming that the system had been restarted recently. […]

If it is not broke, do not fix it 

Google offers a service called Page Speed Service. Its purpose is „to automatically speed up loading of your web pages.“ It fails on mine. When I used the free trial to check whether it would improve the speed of loading my personal homepage at www.hanno-langweg.de, it showed the „optimized“ version of my page to be […]

False positives 

About a month ago I woke up in the middle of the night. I did not realize at first why I was awake, but all of a sudden adrenaline kicked in and I recognized the sound of my smoke detector. All four of them, that is, thanks to them being connected by radio. I checked […]

Forensics at home 

Lately, I was alerted that all pictures on the digital camera in our home had been accidentally deleted. The last transfer of pictures from the memory card to a stationary computer had been two months ago, so there were a lot of pictures at stake. The camera had been shut down immediately when the deletion […]

Interactive error message on unattended device 

I returned from vacation to Turkey this week. The AYT airport in Antalya uses a large number of public information screens to show advertisements, announcements, and security advice. A row of ca. ten screens in the front baggage screening area was not working properly. Instead of what they were supposed to be showing, the screens […]

The war is over 

Sometime last year, one of the food store chains in this country accelerated competition on young parents. They reduced the retail price for diapers by 50%. In addition, the chain operating the store in my neighbourhood increased the bonus you get when shopping for diapers. Instead of getting the 4th package for free, they also […]

If at first you don't succeed, try harder 

Earlier this year a boy from the neighbourhood tried to sell us the Sunday newspaper. He rang the doorbell and waited. Typically we were having (late) breakfast with the family. The first time it happened, I opened the door and politely declined to buy newspapers from him. Following Sunday he rang again. I opened the […]