Helsinki - I made 56874 calls to explore the telephone network. Here’s what I found. [Valtteri Lehtinen - Security Research & Curiosities | Helsinki, Finland] https://t.co/NRi1BtWlJg

11:25am PDT - June 23rd, 2021

I made 56874 calls to explore the telephone network. Here’s what I found. [Valtteri Lehtinen - Security Research & Curiosities | Helsinki, Finland] https://t.co/NRi1BtWlJg

0 retweets 0 likes -