Whitelist or blacklist: why Windows needs both approaches
Debates about parental control keep trying to crown one winner: the whitelist (“everything is forbidden except the needed”) or the blacklist (“everything is allowed except the dangerous”). In practice, on Windows the jobs split: the internet wants a strict whitelist, while installed programs want a protected blacklist. Here is why “BelyyList” and “AppBlocker Pro” each solve a different side of one task — and how they team up.
1. Network circuit: why a whitelist wins for the internet (“BelyyList”)
When it comes to the internet during online lessons or remote work, the classic site blacklist turns out powerless. The reason is simple math: harmful or distracting resources are endless. Block ten game sites and social networks — and millions of mirrors, browser games and forums stay open.
What is worse, any URL blacklist is bypassed in seconds:
- installing a free VPN extension in the browser in one click;
- turning on encrypted DNS (DNS-over-HTTPS), which hides the visited domain names from the filters;
- launching portable proxies or anonymizers.
That is why network traffic is governed by a whitelist (in information security it is called the Default Deny principle — deny by default). The program “BelyyList” fills that role:
- It blocks 100% of outgoing traffic at the level of the Windows system firewall.
- It opens access only to trusted study hosts (Zoom, Kontur Talk, Yandex Telemost and the parent’s personal list of school portals).
- It shuts down any VPN tunnels, TUN/TAP adapters, DoH and proxy servers at the root.
The result: online, the child physically has nowhere to go except the platform the lesson runs on.
2. Program circuit: why the PC disk works better with a blacklist (“AppBlocker Pro”)
Why not apply the whitelist idea to the programs on the computer itself — forbid every .exe except, say, Word and the browser?
On an ordinary home PC with Windows 10 or 11, trying to enforce a total whitelist of executables (say, via the heavyweight AppLocker / WDAC corporate policies) inevitably ends in chaos:
- Modern Windows runs hundreds of background system processes, driver updates and service utilities. A software whitelist keeps blocking regular OS components.
- Every automatic update of the video card, audio or system changes file hashes, and the computer stops working properly.
That is why, for apps already installed on the disk, a targeted blacklist is far more effective and convenient. And that is exactly how “AppBlocker Pro” is built:
- You simply drag the executables of specific distracting games and apps (Steam, Discord, Roblox, Minecraft, Telegram, third-party browsers) into the program window.
- AppBlocker Pro activates the Windows system policy
DisallowRun, instantly forbidding the chosen processes from launching. - Key advantage: the program closes the main weakness of ordinary blockers — it locks the system bypass tools (Task Manager, PowerShell, the CMD command line and Registry Editor) and protects all parameters with a cryptographic master password.
3. Two-circuit protection: how “BelyyList” and “AppBlocker Pro” complement each other
With only one of the two tools in play, the protection always keeps a gap:
- If only “BelyyList” is on: the internet is reliably limited to study services, but the child can simply minimize Zoom and launch an offline game installed on the disk (a strategy, a single-player RPG or a racing game) that needs no network.
- If only “AppBlocker Pro” is on: disk games cannot launch, but through the browser left for school the child can endlessly watch short videos, scroll social feeds or play web games.
Combining the two approaches seals the environment with no loopholes left for distraction:
| Parameter | Network circuit: “BelyyList” | Program circuit: “AppBlocker Pro” |
|---|---|---|
| Principle | Whitelist — everything is closed except what is allowed | Blacklist — specific chosen .exe files are forbidden |
| Filtering level | Network level (Windows firewall, ports, IP, DNS) | System level (Windows Explorer policies, .exe processes) |
| What it blocks | Social media, video hosting, entertainment sites, VPN, proxies, DoH | Local games, Steam, launchers, players, distracting apps |
| Bypass protection | A watchdog service restores the network rules; parent password | Task Manager, PowerShell, CMD and the Registry locked; master password |
| Main purpose | Staying in the online call and study services, with no escape into the internet | Keeping heavy games and PC-setting tampering from starting |
4. Which scenario fits your case?
Depending on the child’s age, the nature of the lessons and the software installed, you can combine the studio’s programs to fit your tasks:
- Only “BelyyList”: if no third-party games are installed and the main problem is attention drifting to browser tabs (YouTube, chats, web games) during tutor lessons.
- Only “AppBlocker Pro”: if the internet is needed for wide research or free study, but access to specific games (Dota, CS, Roblox) must be strictly limited and digging into Windows settings prevented.
- The “BelyyList” + “AppBlocker Pro” combo: the no-compromise mode for exam preparation or for children who actively hunt for bypasses. The network is locked to the video conference, while local games and admin consoles are password-locked.
Summary
The whitelist and blacklist do not compete — they work effectively at different levels of the operating system. Use the network whitelist where the list of allowed things is finite (online lessons), and the targeted blacklist where specific executables and bypass tools must be blocked behind a master password.
BelyyList
Network whitelist: study websites only, full VPN and DoH blocking.
AppBlocker Pro
Local blacklist: .exe files, games, Task Manager and CMD locked behind a password.