Simple solutions to complex problems

Simple solutions to complex problems

Each post is devoted to a simple solution to a complex problem.


A simple way to have real self custody of your crypto private keys

27 Jun 2024 4 minute read 0 comments I_g_o_r

In this post we analyze meaning of self-custody, define a criterion how to distinguish fake self-custody from real self-custody and point out to a method how to have real self custody. First of all, we need to understand that there are many definitio...

A simple way of dynamical passwords defense against sniffing attacks

26 Jun 2024 2 minute read 0 comments I_g_o_r

A sniffing attack refers to stealing or interception of data by catching network traffic using a sniffer (computer software or hardware that can intercept and log traffic passing over a digital network). Even so, that https protocol encrypts all data...

A simple way to estimate when you become a millionaire (Part 2)

25 Jun 2024 1 minute read 0 comments I_g_o_r

In the first part (see [1]) we estimated returns on investments (ROIs) you need, to become a millionaire from investing an initial capital S and reinvesting it for N years with the same ROI. For small initial capital and contributions, the ROIs are h...

A simple way of defense against shoulder surfing attacks

18 Jun 2024 3 minute read 2 comments I_g_o_r

A shoulder surfing attack is a type of social engineering technique used to obtain information such as personal identification numbers (PINs), passwords and other confidential data by looking over the victim's shoulder. There are three types of shoul...

A simple way to create virtual/phantom seeds or mnemonics for crypto wallets

11 Jun 2024 2 minute read 0 comments I_g_o_r

A virtual/phantom seed or mnemonic is a seed or mnemonic, which does not exist in the real world most of time. For this reason it can not be damaged, stolen, hacked, broken, confiscated, etc. when it does not exist in the real world. Virtual/phantom...

A simple way to increase security and protection of crypto assets for high net worth people

5 Jun 2024 3 minute read 10 comments I_g_o_r

High net worth people (let’s say $100,000+ in cryptos and over $0.5 mln. in other assets) usually keep their cryptos in hardware wallets. Investors, who hold but not trade cryptos, write private keys on a paper, then cut it in several pieces and keep...

A simple way of protection against steganography based malware attacks

25 May 2024 1 minute read 0 comments I_g_o_r

Steganography is the art of hiding information in plain sight, in another data medium. It was used from ancient times to hide secret information. In 21-st century hackers invented efficient methods to hide malware in images and documents. In 2019 mal...

A simple way of defense against cat-phishing attacks

17 May 2024 1 minute read 0 comments I_g_o_r

Low-Effort, High-Impact Cat-Phishing (LFHICP) successful attacks are rising fast. See [1] The term “cat-phishing” refers to a method where cyber criminals manipulate seemingly legitimate links to redirect users to malicious websites without their kno...

A simple way to make profit during high inflation periods using gold backed crypto currencies

14 May 2024 2 minute read 0 comments I_g_o_r

The majority of people do feel inflation in food, cost of housing, services, etc. Some government officials deny that we have or are going into a prolonged period of inflation or even stagflation (see [1]), which is the strong indicator that we do wi...

A simple way for secure management of multiple super strong passwords for multiple gaming sites and devices

12 May 2024 3 minute read 6 comments I_g_o_r

A typical gamer, today, has multiple online gaming accounts and gaming devices, which require passwords for logins. For secure management of all these accounts, users need strong unique passwords for each account. Otherwise, users significantly incre...