An IP address is not a skeleton key. It will not hand over your passwords, but it can give attackers somewhere to aim, identify your internet service provider, and narrow your location to an approximate city or region.
IP addresses route data between websites, games, and devices. Most home routers let several devices share one public IPv4 address, while IPv6 can give each device its own public-facing address; some IPv6 addresses remain limited to local or private networks, and temporary addresses can change over time.
That does not make an exposed address harmless. In November 2021, Twitch streamer xQc lost his internet connection after playing Crab Game. The developer warned streamers away from public lobbies after discovering that the game could expose players’ IP addresses to distributed denial-of-service attacks. xQc could not confirm that an attack caused his outage, but the developer soon moved to newer Steam networking to hide IP addresses.
A typical DDoS attack floods a target with traffic from multiple sources. It is the same kind of attack Bluesky blamed for server outages, only the target can also be a gaming session, video call, or an entire household connection. Once the connection is overwhelmed, a firewall may offer little help—there is no clever setting that makes a traffic flood politely leave.
An IP address alone does not provide access to a device. An attacker still needs a way in, such as an exposed security camera, remote-access software with a security flaw, or a home server protected by a weak password. IPv4 port forwarding and permissive IPv6 firewall settings can expose those services.
IPv6 Changes the Address, Not the Responsibility
A properly configured router firewall can block unsolicited connections while allowing responses to traffic started inside the network. An OpenWrt user on Reddit discovered the practical risk after enabling IPv6 and testing a home server remotely: remote-access and file-sharing ports were reachable from outside the network because the firewall allowed forwarding. Changing the setting to reject closed the opening.
Microsoft disclosed CVE-2026-105016 in October 2026, describing a critical flaw in its QUIC implementation that could let specially crafted IPv6 traffic execute code in affected .NET applications on Windows. Microsoft’s advisory did not say whether attackers had exploited it, and disabling IPv6 is not the answer; Microsoft warns that turning it off can create problems for some Windows components.
Check firewall settings for both IPv4 and IPv6, remove remote-access rules you do not need, and install security updates. A VPN can hide your usual public IP address from websites if it handles both protocols correctly, but it cannot patch vulnerable software. Check that it works before trusting it with anything important.
The Other Weak Links at Home
NAT helps explain why one public IPv4 address can serve an entire home. IPv4 has room for about four billion unique numbers, so internet providers adopted network address translation; IPv6 has enough possible addresses for every grain of sand on Earth to have billions of its own, but the transition remains incomplete.
For gaming, NAT type describes how well a console or PC can communicate with the wider internet—not your speed or ping. Xbox and PC use Open, Moderate, and Strict; PlayStation uses Type 1, Type 2, and Type 3; Nintendo Switch uses A, B, C, D, and F. Open connects to anyone, Moderate connects to Open or Moderate players, and Strict can connect only to Open players.
Double NAT, caused by using two routers, can trigger matchmaking problems. Put an ISP gateway into bridge mode or place a second router in access-point mode. UPnP can fix Strict NAT by opening requested ports, but it also creates security risks if someone gains access to the network. Carrier-grade NAT can cause similar trouble, and an ISP may need to provide a dedicated public IP.
Security problems do not stop at IP addresses. Spam callers obtain numbers through data breaches, public records, random dialing, phishing, and data brokers. Account sign-ups, loyalty programs, contests, sweepstakes, confusing checkboxes, fake login pages, sketchy websites, fake job listings, and bogus apps can all put a number into circulation.
The FTC’s Do Not Call Registry restricts most telemarketing calls, but charities, political parties, debt collectors, and telephone surveyors remain exempt. Hide your number on public profiles, create fewer accounts, inspect the boxes you check, and search your email address on Have I Been Pwned. Searching your own number in quotes can also reveal where it appears.
Then there is the router itself. A device running for a few hours should feel warm, but uncomfortable heat paired with connection problems, speed changes, freezes, shutdowns, or shrinking Wi-Fi range points to trouble. Poor ventilation, dust, direct sunlight, nearby computers or consoles, a faulty power adapter, or a failing router can push temperatures too high.
Move the router into open air, clean its vents, update its firmware, and replace the power adapter with one rated for the device. If those steps fail, the router may simply be ready for replacement. Good ventilation is key.
Power outages create a simpler failure: networking equipment goes silent. A UPS can keep a router or Wi-Fi mesh system running for an hour or longer for well under $100, while battery inverters compatible with DeWalt, Milwaukee, or Ryobi batteries can cost as little as $30. A UPS switches automatically; an inverter requires manual connection and equipment restart.
Test the backup before an outage, power only the networking gear, and remember the limit: this works only when the internet provider’s connection stays up. For a complete internet outage, use a phone’s mobile hotspot or a mobile hotspot device.
Based on
- Can a hacker really do anything with your IP address? — engadget.com
- How Do Spam Callers Get Your Number In The First Place? — engadget.com
- Is Your Router Overheating? Here’s How To Keep It Cool And Working Safely — engadget.com
- What Does NAT Type Mean For Online Gaming? — engadget.com
- You Can Easily Keep Your Home Network Running During A Power Outage — Here’s How — engadget.com
