The Curious Engineer

All blogs / Security

Valtteri Lehtinen

shufflingbytes.com

Security Research & Curiosities

SecurityNetworkingCrypto / fintech

’21’22’23’24’25’26
Posts
10 from 17 Apr 2021 to 3 Mar 2026
Posting
now and then (1 in the last year)
Kind
personal blog
Feed
https://shufflingbytes.com/index.xml

2026 1

  1. Harjus v4 adds kernel bypass and more

2025 1

  1. Harjus: Triangular Arbitrage Bot for Binance

2024 2

  1. How to Make Nmap Recognize New Services
  2. InmateBridge: Voice Bridge for Prank Calling

2023 1

  1. Ripping Off Professional Criminals by Fermenting Onions

2022 3

  1. UPnProxyChain: a Tool to Exploit Devices Vulnerable to UPnProxy
  2. GoIP-1 GSM gateway could be harnessed for phone fraud by hackers
  3. DNS records of 1% .fi domains exposed through Zone Transfers

2021 2

  1. I made 56874 calls to explore the telephone network. Here's what I found
  2. What I learned of the VOIP hacker scene by setting up a SIP Honeypot