A1TechRescue

15/09/2026

🔐💻 PASSWORD HASHING — WHAT ACTUALLY HAPPENS TO YOUR PASSWORD? 💻🔐

We all type passwords into websites every day… but have you ever wondered what SHOULD happen to that password once you press “Sign In”? 🤔

A reputable service shouldn’t simply keep your actual password sitting in a database waiting for someone to find it! 😳

Instead, passwords are normally protected using something called HASHING. 🔒

Think of it as turning your password into a one-way digital fingerprint.

⌨️ You enter your password
⚙️ A hashing algorithm processes it
🔐 The resulting hash is stored
🔄 When you log in again, your password is hashed and compared with the stored result
✅ If they match — you're in!

The clever bit?

A hash is designed to be ONE WAY. You don't simply take the stored hash and convert it back into the original password.

⚠️ HOWEVER…

Hashing doesn't magically make a weak password safe!

If your password is something predictable like:

❌ Password123
❌ Football123
❌ YourName2026
❌ The same password you use EVERYWHERE 😬

…attackers can still attempt huge numbers of likely passwords and compare the results.

Modern systems therefore use proper password-hashing methods, unique salts and other protections to make attacks considerably harder. 🛡️

💡 A1TECHRESCUE TIP:

🔹 Use a LONG, unique password for every important account
🔹 Never reuse your email password elsewhere
🔹 Use a reputable password manager
🔹 Turn on 2FA/MFA wherever available
🔹 If a service suffers a breach, change affected passwords promptly

And no… sticking a “1!” on the end of the same password you've used since 2007 doesn't count as cyber security! 😂😂

Small changes to your online habits can make a BIG difference. 🔐

⚡ A1TechRescue
🔧 Keeping You Connected.

📌 Save & share — somebody might learn something!

14/09/2026

🔌🌐 LAN CABLES — CAT5e / CAT6 MADE EASY! 🌐🔌

Ever looked at the end of an Ethernet cable and wondered why there are eight tiny coloured wires inside it? 🤔

Well... there IS actually an order to the madness! 😂

At A1TechRescue, it’s not just laptops, PCs, phones and tablets — networking and keeping everything connected is part of the job too. 🔧💻📡

So here’s a handy little guide to making your own RJ45 Ethernet cable using the common T568B wiring standard. 👇

🧰 WHAT YOU’LL NEED:

🔹 Cat5e or Cat6 Ethernet cable
🔹 RJ45 connectors
🔹 RJ45 crimping tool
🔹 Cable stripper/cutter
🔹 Network cable tester

🌈 T568B WIRE ORDER:

1️⃣ White/Orange
2️⃣ Orange
3️⃣ White/Green
4️⃣ Blue
5️⃣ White/Blue
6️⃣ Green
7️⃣ White/Brown
8️⃣ Brown

🛠️ THE PROCESS:

1️⃣ Carefully strip back the outer cable jacket.
2️⃣ Untwist and arrange the eight wires into T568B order.
3️⃣ Straighten them and hold them tightly together.
4️⃣ Trim the ends evenly.
5️⃣ Push all eight wires fully into the RJ45 connector.
6️⃣ Check the colours AGAIN before crimping! 👀
7️⃣ Crimp the connector securely.
8️⃣ TEST IT! ✅

💡 A1TECHRESCUE TIP:

Never assume a cable is good just because the ends look perfect.

A cable tester can quickly identify crossed wires, incorrect pin order, open connections or other faults that aren't obvious by looking at the connector.

And believe me... discovering the mistake BEFORE you've routed the cable through half the building is considerably less annoying! 😂😂

⚠️ Also remember: if you're making a normal network patch cable, use the SAME wiring standard at BOTH ends.

Small details make a BIG difference when it comes to networking. 🌐

Whether it’s PCs, laptops, upgrades, repairs or getting your devices talking to each other...

⚡ A1TechRescue
🔧 Keeping You Connected.

📌 Save this guide — you never know when it'll come in handy!

11/09/2026

🛰️⭐ STARLINK – GET YOUR FIRST MONTH FREE! ⭐🛰️

As most of you know, I use Starlink myself and it’s become a big part of keeping everything connected here — home, family and A1TechRescue! 💻📱🔧

Living out in rural Dorset, decent internet isn’t exactly something you can always take for granted 😂🌳 — which is why I went with Starlink.

🌍 Starlink uses a network of low-Earth-orbit satellites to provide high-speed, low-latency internet without relying on the usual phone line or fibre connection to your property.

It can be a great option for:

🏠 Home internet
🌳 Rural properties where broadband choices are limited
🚐 Travelling, caravans, motorhomes & Roam users
💻 Working from home
🎮 Streaming, gaming & everyday internet use
📱 Keeping all those phones, tablets and smart devices connected
🔧 And in my case… keeping A1TechRescue online! 😁

🎁 AND THERE'S CURRENTLY A NICE LITTLE BONUS…

Sign up for an eligible Starlink Residential or Roam service using my referral link and YOU receive ONE MONTH OF STARLINK SERVICE FREE, applied to your second month. 🙌

And yes… I get a little referral reward too! 😜
Starlink currently offers me £40 for an eligible referral, but your free month isn't affected by which reward option I choose.

👇👇 MY STARLINK REFERRAL LINK 👇👇

https://starlink.com/?referral=RC-DF-5519213-22467-45&app_source=share

You can also simply scan the QR code on the picture. 📲

If you've been putting up with painfully slow rural broadband, struggling to get fibre where you live, or you've been considering Starlink anyway, it's definitely worth having a look — especially while you can get that free month.

🛰️ Same sky. More possibilities.

🔧 A1TechRescue
⚡ Keeping You Connected

26/08/2026

🔧⚡ A LITTLE MORE PROGRESS...

Yes... before the Facebook electrical inspectors arrive — THE POWER IS ISOLATED! 😂😂

More progress on the A1TechRescue workspace tonight. The trunking is going in, cables are being routed and I'm slowly getting everything where I want it.

It's one of those jobs where you think, “I'll just put a bit of trunking up...” and several hours later the tools have taken over the entire worktop and you've somehow started dismantling half the room. 🤣

Still plenty to do, but it's starting to come together now. 👌

The aim is a proper clean setup with the power and cabling neatly contained rather than wires running everywhere — because apparently I'm capable of cable management for customers, so I suppose I ought to do it for myself occasionally! 😂

🔧 More progress to follow...

⚡ And one final time for the people at the back: YES, IT'S ISOLATED! 🤣

24/08/2026

🔧💻 A1TECHRESCUE — ANOTHER LAPTOP GIVEN A NEW LEASE OF LIFE! 💻🔧

Today’s little job was a family one — Amy’s HP laptop had decided that Wi-Fi was apparently an optional extra. 😂

The original Intel 3168NGW wireless card was showing its age, so rather than messing around trying to squeeze more life out of old technology, out it came! 👋

📦 New arrival through the post…

⚡ Intel Wi-Fi 6 AX200 160MHz

Bottom off the laptop 🔧
Old card removed 🪛
New AX200 fitted ✅
Antennas connected 📡
Drivers installed 💻

And then…

❌ NO INTERNET ACCESS

Of course. 🤦‍♂️😂

Windows could see the new card.
The driver was working.
It could see the network.
It could even connect to the network…

…but apparently actually providing INTERNET was asking a bit much. 🤣

So began the A1TechRescue method:

🔍 Check Device Manager
🔍 Check drivers
🔍 Check adapter settings
🔍 Check Wi-Fi modes
🔍 Prefer 5GHz
🔍 Enable 802.11ax / Wi-Fi 6
🔍 Check DHCP
🔍 Check IPv4
🔍 Check DNS
🔍 Mutter several technical words that aren't included in Microsoft's troubleshooting documentation 😂

And finally…

📶 A1TechRescue(H) — INTERNET ACCESS! ✅🎉

Even better, the new card negotiated a connection of up to 866.7Mbps, and Amy's older HP now has Wi-Fi 6 capability. 🚀

That's what I enjoy about repairing and upgrading computers.

A laptop doesn't suddenly become useless just because it's a few years old. With the right upgrades, a decent clean-up and somebody willing to actually diagnose the problem rather than immediately say “you need a new laptop”, there's often plenty of life left in it. ♻️💻

Amy's laptop lives to fight another day — only now with considerably better Wi-Fi! 😂📡

🔧 A1TechRescue
💻 Computer • Laptop • Mobile Repairs & Upgrades
♻️ Repair • Upgrade • Reuse
📍 West Dorset

Keeping You Connected. 💙

06/08/2026

🔗 EVERYTHING I DO... NOW IN ONE PLACE! 😁

Over the years I've ended up with rather a few hats... so I thought I'd make life a little easier! 😂

🔧 A1TechRescue – Computer, Laptop & Mobile Repairs
♻️ readanrecycle – Quality refurbished tech & eBay finds
🚗 DorsetDriver – Driving videos, adventures & content
📘 Facebook
📸 Instagram
🎵 TikTok
▶️ YouTube
🛒 eBay..and more!

Instead of hunting around for different pages, you'll now find everything in one handy place. 😊

👇 Have a browse, give me a follow, and if you know someone who needs a reliable tech repair, refurbished device, or just enjoys a good drive around Dorset, feel free to share it with them.

🔗 https://linktr.ee/A1TechRescue

As always...

💙 **A1TechRescue – Keeping You Connected.**

08/02/2026

17/11/2025

Did You Know?

Your router protects your home network from the internet. Or it's supposed to. Two major vendors just proved it doesn't. 😅

ASUS: CVE-2025-59367 (CVSS 9.3)
TP-Link: CVE-2025-7850 + CVE-2025-7851 (CVSS 9.3 + 8.7)

Both disclosed November 2025. Both critical. Both letting attackers walk right in.

ASUS routers: No password required.

The vulnerability affects ASUS DSL-AC51, DSL-N16, and DSL-AC750 routers. Authentication bypass.

If your router's management interface is exposed to the internet, an attacker can connect remotely without any credentials. No username. No password. Direct admin access.

Many routers have remote management enabled by default. Some ISPs enable it for "support purposes." Either way, if the admin panel is reachable from outside your network, CVE-2025-59367 makes it completely open.

What can attackers do with admin access? Change your WiFi password and lock you out. Redirect your traffic through their servers. Monitor every device on your network. Use your router to attack other people, making it look like the attacks come from you.

TP-Link: They "fixed" it. Then researchers rooted it again.

Last year, CVE-2024-21827 let attackers get root access through leftover debug code in TP-Link routers. TP-Link patched it in 2024.

Except the debug code is still there. They just made it harder to reach.

Forescout researchers found CVE-2025-7850 and CVE-2025-7851. The patch addressed the original bug but left two problems: the debug functionality stayed in the firmware, just hidden behind a private key check. And if attackers can bypass that check, the entire debug system becomes available again.

The researchers did exactly that. They found CVE-2025-7850, a command injection flaw in the WireGuard VPN settings. An authenticated admin can inject operating system commands that execute with root privileges.

But here's where it gets worse: their protocol analysis showed CVE-2025-7850 can be exploited without credentials in certain network configurations. What looked like a local-only bug turned into a remote attack vector.

Using root access from these two bugs, they found 15 more vulnerabilities across other TP-Link device families. All under coordinated disclosure. All expected to be patched Q1 2026.

The pattern? TP-Link patches individual bugs but doesn't fix the underlying code problems. The vulnerabilities keep coming back in different forms.

Botnets already target these routers.

In May 2025, AyySSHush botnet compromised over 9,000 ASUS routers. It installed persistent SSH backdoors that survive reboots.

Quad7 botnet specifically targets TP-Link routers. It chains vulnerabilities to infect devices, then uses thousands of compromised home routers to launch password spray attacks against Microsoft 365 accounts.

The attacks work because they come from residential IP addresses spread across multiple countries. To Microsoft's systems, it looks like normal login attempts. But it's coordinated, using your router as part of the attack infrastructure.

Check if you're affected.

ASUS DSL router owners: If you have DSL-AC51, DSL-N16, or DSL-AC750, update to firmware 1.1.2.3_1010 immediately.

TP-Link router owners: Affected models include ER605v2, and multiple Omada/Festa VPN router families. Check TP-Link's security advisory for your specific model and apply the latest firmware.

ISP-provided routers: Many ISPs rebrand consumer routers. Dutch ISP Ziggo rebranded the TP-Link Archer C7 as "Wifibooster Ziggo C7." Check what hardware you actually have in your own country...

For routers that won't get patches: Use strong, unique passwords for both WiFi and router admin (20+ characters minimum). Disable remote access from WAN. Turn off port forwarding, DDNS, VPN server, DMZ, and FTP unless you specifically need them. Or replace the router with a currently supported model.

11/11/2025

DID YOU KNOW ?!

Your Windows PC has a fax modem driver from 2006. You've never owned a fax machine. (Okay, maybe you have. But stick with me...) It's there. On EVERY Windows version. And it's been exploited. 😏

CVE-2025-24990. Microsoft's legacy code nightmare.

Here's the crazy part: A driver for old fax modems (ltmdm64.sys) has been quietly sitting on every Windows system since 2006. Possibly even Windows XP - this driver has been around that long. Windows 7, 10, 11, Server 2022, Server 2025. ALL of them.

The driver was designed for hardware nobody uses anymore. Fax modems.

But it runs with the highest system permissions possible.

Here's what's happening:

→ Driver has a security hole that lets attackers become admin
→ Works even if you don't have a fax modem
→ Sitting on every Windows computer by default
→ Has been actively exploited in the wild

Every Windows PC you've ever used. Your work laptop. Your home computer. Your company's servers. All had this security hole sitting there since 2006.

And nobody noticed.

Microsoft's solution? They're deleting the driver completely instead of fixing it.

Translation: "This 19-year-old code is so broken we're just removing it."

Security researcher Ben McCarthy explained it: "This driver is from before we knew how to write secure code. It has the highest permissions on your system. That makes it perfect for attackers."

Researchers think hackers use it to bypass antivirus and security tools.

The timeline is ridiculous:

→ 2006: Driver ships with every Windows version
→ October 2025: Researchers discover hackers are using it
→ Microsoft's fix: Just delete it

Every Windows version since 2006.
→ Windows 7, 10, 11
→ Windows Server 2022, 2025
→ Even if you never used a fax modem

Want to check if the driver is still on your system?

Press Windows + R
Type: C:\Windows\System32\drivers
Look for: ltmdm64.sys

Still there? Update immediately.

CISA (U.S. security agency) required federal agencies to patch this immediately.

Old code kills security. This driver sat on billions of computers for 19 years before anyone noticed it was broken.

Hackers noticed.

Your antivirus didn't.

This is why ethical hackers exist. We find old security nightmares like this before criminals use them.

21/09/2024

Today's Task is to replace this DC port on an Acer Aspire 3 series laptop.