Technology

The art of hacking has become stealthier and smarter over the years. Chinese hackers can hide the code they use to infiltrate systems worldwide. These include vulnerabilities that attackers can use to sneak into a computer network. Exploits allow them to start stealing data once they are inside. “Click Here’s” Dina Temple-Raston reports on how they can do this.

In Colombia, one company is introducing visitors to the city of Medellín by taking them around on wheelchairs that are pulled by electric handbikes and can reach speeds of about 25 mph. The tours are led by people with disabilities and are part of a broader effort to make the city more accessible to all, led by a very persistent businessman. Manuel Rueda reports.

Åsa Koski, a social strategist with the Luleå municipality in northern Sweden, started the Säg hej! (“Say hi!”) campaign to try and get people to interact more with each other to combat widespread loneliness.

Since the beginning of Russia’s large-scale invasion of Ukraine, Moscow has been bombing uniquely Ukrainian cultural sites. Preservationists are using “photogrammetry” — the act of deriving precise measurements from taking overlapping photos and rendering them in three dimensions. Dina Temple-Raston, the host of “Click Here,” was recently in Ukraine and met those working to preserve the country’s heritage — on their phones.

The “Click Here” podcast traveled to Ukraine to look at its grassroots defense industry and take you into its secret drone factories where entrepreneurs are able to put innovative weapons into the hands of soldiers at the front in a matter of weeks, not months.