Guide on Smart Home? Sure — But Secure!

The Perfect Home Assistant Password

Sun, 13 Jul 2025 00:00:00 +0200

Imagine it’s the middle of the night and suddenly your smart speaker blasts music at full volume. The lights are flashing like crazy, and your heating turns itself up to maximum. At first you think it’s a technical glitch — but then you realize: someone else has taken control of your smart home!

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What sounds like a horror scenario isn’t actually that far-fetched. Users in the Home Assistant forum have shared their experiences:

A user reported in 2018 that their system was controlling lights without authorization — they had Home Assistant running with an open HTTP port and no password
Another case from January 2025: Immediate and massive login attacks right after opening the default port 8123

The alarming reality: According to recent studies, over 80% of all successful cyberattacks are attributed to weak or reused passwords (source: World Economic Forum/LastPass, 2023). Using services like Shodan, attackers find open smart home instances within seconds. The result: someone connects to your Home Assistant installation and — at best — just plays a prank like this.

That’s why a strong password for Home Assistant is absolutely critical. Unfortunately, many people still use trivial passwords that are easy to remember but just as easy to guess. And here’s what makes Home Assistant special: there is no built-in password policy. No requirements for how long or complex your password must be.

A serious mistake? On the contrary! I’ll explain why this is actually a good thing — and why the perfect Home Assistant password isn’t the same for everyone.

What Makes a Good Password?

You’ve probably rolled your eyes more than once when a site demanded “at least 8 characters, one uppercase letter, one number, and a special character.” Many people assume a password is automatically secure just because it looks complicated — but that’s not quite right. What really matters is entropy — how unpredictable and extensive the character combination is. And the rule here is: length beats complexity.

A long password with 20 characters is generally far more secure than a short one with 8, even if the shorter one contains every possible special character. Why? Because each additional character exponentially increases the number of possible combinations — and that’s worth more than a wide variety of character types.

A practical example:

Home123! dutifully meets all complexity rules and looks “secure” at first glance
In reality, many people follow exactly this pattern — a word with a capital letter, the number sequence 123, and an exclamation mark at the end
Passwords like this can be cracked very quickly or guessed through dictionary attacks
myhomeassistantisawesome would take years to crack, even though it uses only lowercase letters

➡️ Test it yourself: howseecureismypassword.net

Sources:

NIST SP 800‑63B (PDF) – See Section 5.1.1.2: No more mandatory regular password changes + focus on length over complexity.
NCSC: Problems forcing regular password expiry – Warns against cyclic password changes as they lead to predictable patterns.
The Guardian: Rejoice! The charade of having to change our passwords every few months is coming to an end – Reports on NIST & NCSC guidelines against frequent password changes and in favor of passphrases.

The Problem with Password Policies

Those seemingly “complicated” passwords can actually end up being insecure because they follow predictable patterns. Strict password policies often mislead users and tempt them into reusing passwords. Be honest: when you had to fight your way through an annoying password policy, didn’t you just reach for your standard password that ticks all the boxes?

You’re not alone — the numbers are alarmingly clear:

89% know that password reuse is risky, but only 12% use a unique password for every account (source: Spacelift, 2025)
62% of US users report frequently or always reusing passwords (source: NordPass, April 2025)
Especially striking for Gen Z: 72% reuse passwords even though 79% know the risk (source: Bitwarden World Password Day, 2025)
Even after data breaches, 59% of Gen Z recycle their passwords (source: HelpNetSecurity, May 2025)

This is a genuine internal conflict: we know what’s right, but act differently out of convenience or habit. Experts call this a cognitive dissonance between knowledge and behavior.

The Better Alternative: Passphrases

Current recommendations are clear: forget complexity requirements — what counts is length and uniqueness.

In plain terms: use a long passphrase you can actually remember, rather than cryptic eight-character gibberish. You may know the famous xkcd comic on this — four simple words like “correct horse battery staple” together form a nearly uncrackable password that you can still remember fairly easily.

What matters:

Length
Randomness
Uniqueness

Every additional character makes your password exponentially stronger. And of course it shouldn’t be a known word or pattern — “Password123!” is long and looks complex, but it’s still guessed quickly.

Specifics for Home Assistant

Let’s get concrete about Home Assistant: what role do passwords actually play here? Home Assistant is your self-hosted smart home hub. You set up user accounts and assign passwords for logging into the web frontend — and with that, full access to all devices connected to your Home Assistant.

Important: Home Assistant does not dictate what your passwords should look like. There’s no minimum length, no special character requirement, nothing of the sort. And that’s intentional. There used to be a warning when a password was too short. These warnings no longer exist — the developers realized it wasn’t productive. Why?

The requirements for a password depend heavily on the specific use case:

When I record videos for this channel, I’m always glad I don’t have to set a complex password for Home Assistant test instances
Someone who never exposes their smart home to the internet and has no guests on their home network can afford lower password requirements
A Home Assistant installation that is publicly accessible on the internet is subject to completely different standards

With Home Assistant, you are the administrator and must take responsibility yourself. If you’re not comfortable with that, a password manager is probably the best choice for you.

The moment your system is online, it becomes a potential target for automated attacks. And then things get serious fast. Home Assistant does have a built-in brute-force defense (Wikipedia article): after a certain number of failed login attempts, the user’s IP address is temporarily blocked. That’s helpful, but not a cure-all:

Many attackers simply spread their attempts across many different IP addresses
A weak password is often guessed after just a few tries
The IP block therefore offers only limited protection

Additional risks: Even Home Assistant with Nabu Casa has had critical security vulnerabilities — in 2023, a flaw (CVE-2023-27482) with the highest severity score of 10/10 was disclosed, enabling an authentication bypass.

➡️ More on securing Home Assistant: Home Assistant absichern: 5 Tipps für mehr Sicherheit

➡️ Why port forwarding is problematic: Portfreigaben vermeiden: So geht sicherer Fernzugriff

Conclusion

There is no single perfect Home Assistant password — it depends on your use case. But the numbers speak clearly: over 80% of all cyberattacks succeed through weak or reused passwords. At the same time, 89% of people know the risk, yet only 12% act consistently.

What matters:

Length over complexity: A long password is better than a short complex one
Uniqueness: Every system gets its own password — no exceptions!
Proportionality: Match your security requirements to your setup
Additional measures: When internet-facing, use 2FA and secure connections
Use a password manager: This breaks the cycle of password reuse

The solution is simple: A long passphrase or a password manager. That puts you in the 12% who do it right — rather than the 62% who accept security risks out of convenience.

Home Assistant gets it right by putting the responsibility in your hands. Use that freedom wisely!

A look ahead: The next generation of authentication is passkeys — a passwordless technology based on cryptographic keys that is significantly more secure than traditional passwords. Unfortunately, Home Assistant does not yet support passkeys, but the future of authentication may well head in that direction. Until then, strong, unique passwords and 2FA remain our best defense.

Note: Links marked with affiliate link are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means I receive a small commission if you purchase through these links — at no extra cost to you. The revenue helps me run this blog and YouTube channel and keep creating content. Thank you for your support!
― Joachim

BSI Tips Clearly Explained: How to PROPERLY Secure Your Smart Home!

Sun, 06 Jul 2025 00:00:00 +0200

Who voluntarily reads through the lengthy publications of Germany’s Federal Office for Information Security (BSI)? I did it for you and distilled the most important tips for your smart home – explained clearly, assessed critically, and backed up with real-world examples, just like in the video!

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Introduction: Who Actually Reads the BSI?

The BSI publishes a lot of solid advice on how to secure your smart home. But honestly – who willingly reads through pages of text on a government website? That’s why you’ll find the most important recommendations here, explained in plain language and put into perspective.

➡️ You can find the official BSI recommendations here: BSI Smart Home Tips

1. Choose Strong Passwords

It sounds obvious, but weak passwords are one of the most common entry points for attacks. Many users simply leave the default password in place – “admin”, “123456”, or even no password at all are unfortunately far from rare. The BSI advises: no real words, no simple number sequences or keyboard patterns. My tip: use a unique, strong password for every device, ideally managed with a password manager like KeePass or Bitwarden. It keeps things both easy and secure.

2. Keep Software Up to Date

Updates patch security vulnerabilities. Enable automatic updates wherever possible. Not every device offers this – in that case, there’s only one option: check manually on a regular basis, for example once a month. If a device hasn’t received updates in years, you should consider replacing it. Pay attention to the manufacturer’s update policy before you buy!

➡️ To see what can happen when devices stop receiving updates, check out the video about a robot vacuum with a security flaw: Robot Vacuum Hack: This Is How Easy Access Is!

3. Secure Your Router & Home Network

Your router is the gateway between your home network and the internet. Change the admin password, disable unnecessary services like UPnP, and enable the firewall. That said, the best firewall is of little use if you don’t know what you’re doing. Even more importantly: avoid port forwarding for smart home services. Use a VPN (e.g. WireGuard) or a Cloudflare Tunnel instead. It’s also a good idea to put smart devices on a separate guest network.

➡️ For detailed tips on securing Home Assistant and your home network, see: Securing Home Assistant: 5 Tips for Better Security

➡️ How to set up secure remote access without port forwarding: Avoid Port Forwarding: Secure Remote Access Made Easy

4. Buy Only from Trusted Sources

No-name products from overseas are often cheap, but poorly documented and without ongoing updates. The BSI recommends: buy only from reputable retailers, look for CE marking (though be cautious – it’s not a guarantee!), and pay attention to the manufacturer’s update commitment. Reviews in community forums are often far more revealing than marketing promises.

➡️ Cloud or local? What to look for when buying smart devices: Cloud or Local? Running Smart Devices Securely

5. Use the Cloud Deliberately

The cloud is convenient, but it comes with risks. Manufacturers have to maintain cloud servers – that costs money, and corners are often cut. Only use cloud-dependent features when you truly need them, and isolate cloud-connected devices from the rest of your network (e.g. via a guest network). Many devices also work locally, for example with Home Assistant.

➡️ More on cloud vs. local control and privacy: Cloud or Local? Running Smart Devices Securely

Conclusion

The BSI’s tips are solid, even if they can sometimes feel a bit abstract. You don’t have to implement everything at once – but every step makes your home a little more secure. Watch the video for the full details and practical examples.

Note: Links marked with affiliate link are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means I receive a small commission if you purchase through these links — at no extra cost to you. The revenue helps me run this blog and YouTube channel and keep creating content. Thank you for your support!
― Joachim

These 5 Automation Mistakes Everyone Has Made in Home Assistant

Sun, 22 Jun 2025 00:00:00 +0200

Sound familiar? You built an automation, but it doesn’t work the way you intended? Or you have lots of automations but keep running into problems? Then you’re in the right place! In this article I’ll show you the five most common mistakes when designing Home Assistant automations – and how to avoid them easily.

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1. Automations That Are Too Complex

If you no longer remember what your automation is actually supposed to do after two weeks, it has probably become too complex. Split large automations into several smaller ones – this makes them easier to understand and maintain. For example: control your blinds with multiple automations for different triggers rather than cramming everything into one.

2. Too Many Automations Interfering With Each Other

More isn’t always better! When multiple automations access the same entity, conflicts can arise. Think carefully about when it makes sense to keep automations separate – and when it’s better to combine them to avoid race conditions.

3. Not Tested – or Only Tested in Daily Use

Test your automations deliberately before letting them run in everyday life. Think through which triggers, conditions, and actions you need in advance – and verify that everything works as intended. It saves frustration for you and your family!

4. Unclear Naming

Give your automations and entities clear, unambiguous names. It’s worth keeping a small glossary so you always know what’s meant – and can find automations quickly when you need them.

5. Wrong Automation Mode

Many problems arise because the wrong mode (Single, Restart, Parallel, Queue) was chosen. Learn how the modes work – and pick the right one for your automation. More on this in the video!

Summary: With a few simple tricks, your automations become more reliable and easier to manage. If you want even more tips, check out the video!

Note: Links marked with affiliate link are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means I receive a small commission if you purchase through these links — at no extra cost to you. The revenue helps me run this blog and YouTube channel and keep creating content. Thank you for your support!
― Joachim

5 More Automation Mistakes in Home Assistant – Are You Affected? – The follow-up: new pitfalls around trigger IDs, hardcoded time values, and AI-generated automations
Securing Home Assistant – 5 Mistakes to Avoid in Your Smart Home – Once your automations work, the security mistakes come next: the next level

Home Assistant Automation Modes for Beginners Explained - So Everyone Gets It!

Sun, 15 Jun 2025 09:00:00 +0200

Home Assistant Automation Modes for Beginners

You built an automation but it sometimes behaves strangely? Or you’re wondering what the different modes like Single, Restart, Parallel, and Queue actually mean? In this article I’ll explain the differences, show you practical examples, and help you find the right mode for your automations.

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What Are Automation Modes?

In Home Assistant, you can configure for each automation how it behaves when it is triggered multiple times. This is important so your automations work reliably and as intended.

Single: The automation runs only once. If it is triggered again while still running, nothing happens.
Restart: If the automation is triggered again, the current run is cancelled and it starts over from the beginning.
Parallel: The automation can run multiple times simultaneously.
Queue: New triggers are placed in a queue and processed one after another.

Practical Examples

Take a look at the video for examples like motion-triggered lights, doorbells, or voice announcements. There is a right mode for every use case. You should use Parallel with caution though — find out why in the video.

Conclusion: With the right mode your automations become more reliable and you save yourself a lot of frustration. Watch the video to see all the details and examples!

Note: Links marked with affiliate link are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means I receive a small commission if you purchase through these links — at no extra cost to you. The revenue helps me run this blog and YouTube channel and keep creating content. Thank you for your support!
― Joachim

Guide on Smart Home? Sure — But Secure!

The Perfect Home Assistant Password

What Makes a Good Password?

Sources:

The Problem with Password Policies

The Better Alternative: Passphrases

Specifics for Home Assistant

Conclusion

BSI Tips Clearly Explained: How to PROPERLY Secure Your Smart Home!

Introduction: Who Actually Reads the BSI?

1. Choose Strong Passwords

2. Keep Software Up to Date

3. Secure Your Router & Home Network

4. Buy Only from Trusted Sources

5. Use the Cloud Deliberately

Conclusion

These 5 Automation Mistakes Everyone Has Made in Home Assistant

1. Automations That Are Too Complex

2. Too Many Automations Interfering With Each Other

3. Not Tested – or Only Tested in Daily Use

4. Unclear Naming

5. Wrong Automation Mode

Related Articles

Home Assistant Automation Modes for Beginners Explained - So Everyone Gets It!

Home Assistant Automation Modes for Beginners

What Are Automation Modes?

Practical Examples