Valtteri Lehtinen
Security Research & Curiosities | Helsinki, Finland
Recent
- Mar 3 2024 How to Make Nmap Recognize New Services
- Jan 6 2024 InmateBridge: Voice Bridge for Prank Calling
- Jun 5 2023 Ripping Off Professional Criminals by Fermenting Onions
- May 30 2022 UPnProxyChain: a Tool to Exploit Devices Vulnerable to UPnProxy
- Feb 15 2022 GoIP-1 GSM gateway could be harnessed for phone fraud by hackers
Fun
- Jan 6 2024 InmateBridge: Voice Bridge for Prank Calling
Guide
- Mar 3 2024 How to Make Nmap Recognize New Services
Research
- Jun 5 2023 Ripping Off Professional Criminals by Fermenting Onions
- May 30 2022 UPnProxyChain: a Tool to Exploit Devices Vulnerable to UPnProxy
- Feb 15 2022 GoIP-1 GSM gateway could be harnessed for phone fraud by hackers
- Jan 13 2022 DNS records of 1% .fi domains exposed through Zone Transfers
- Jun 23 2021 I made 56874 calls to explore the telephone network. Here's what I found
- Apr 17 2021 What I learned of the VOIP hacker scene by setting up a SIP Honeypot