With more Australians facing data breaches every year, the risk of getting hacked is growing. In fact, it may have already happened without you knowing. That’s why learning how to know if you have been hacked is essential in today’s digital age.
How Can You Tell if You Have Been Hacked?
With cybercrime on the rise, knowing the signs of a hack is crucial to protecting your data. Too often hackers lurk in compromised systems while users remain unaware. From pop-up ads, slow devices, or suspicious emails there are plenty of signs when you know the signs.
8 Signs You’ve Been Hacked
Below, we’ll outline the 8 red flags that signal a breach—such as unusual account activity and security alerts—so you can stay vigilant and safeguard your digital life.
1. Unusual Account Activity
Picture this: you log into your email, only to find strange messages sent to people you’ve never contacted. This is often how hacking starts. Hackers may send emails, add new contacts, or log in from unknown locations, sometimes even altering account details to cover their tracks.
These subtle changes are often the first sign of a breach. Contact your bank or service provider immediately to secure your accounts.
2. Unexplained Password Changes
In 2022, over 123,000 Australians were victims of identity theft, often starting with something as simple as a password change. If you suddenly can’t access an account because your password no longer works, it’s a clear red flag.
Hackers frequently change passwords to lock you out, making it difficult for you to regain control while they exploit your personal information.
Pro tip: Set up two-factor authentication (2FA) to make it harder for hackers to take over your accounts.
3. Increased Pop-ups and Ads
It feels like your device has been invaded by a swarm of hostile drones, each one bombarding your screen with ads, offers, and suspicious links. No matter how many you close, more seem to appear, making navigation impossible.
This invasion is a telltale sign that malware or adware has infiltrated your system, quietly hijacking your data while flooding your device with distractions.
Pro tip: Install an ad-blocker and avoid clicking on suspicious links.
4. Slow Device Performance
Your computer used to run like a high-speed engine, but now it’s lagging behind. Pages take ages to load, apps freeze, and even simple tasks feel sluggish. This drop in performance often signals malware silently draining your system’s resources.
Malware infections are a growing concern in Australia, impacting both individuals and businesses. If your device suddenly slows down, malware may be to blame.
Pro tip: Run a virus scan using reputable software to detect and remove malware.
5. Suspicious Emails or Messages
Phishing attacks are one of the most common ways hackers trick people into handing over personal information. Receiving strange emails or messages with unexpected links or attachments is a red flag.
Hackers often disguise these communications to look legitimate, hoping you’ll fall for the bait. This is especially concerning for small businesses, where a single click can expose critical data.
6. Unauthorised Transactions
You log into your bank account and spot unfamiliar small charges. Hackers often make minor purchases to test your account before larger withdrawals. If you notice this, your financial details may have been compromised.
With cybercrime causing billions in global losses, these warning signs highlight the critical need for strong cybersecurity measures.
7. Strange System Behaviour
It’s like your device has entered a digital twilight zone. One minute everything’s fine, and the next, programs open on their own or your device restarts unexpectedly. These glitches are more than just frustrating—they’re a clear sign that something sinister could be lurking.
Malware or ransomware often causes these erratic behaviours as they work behind the scenes to compromise your data.
8. Security Software Alerts
In 2021-2022, the Australian Cyber Security Centre reported over 76,000 cybercrime incidents —a 13% rise. Many of these started with security software alerts that users ignored. These warnings often signal malware or suspicious activity, so don’t let them slip by—your data could be at serious risk.
Protect Your Digital Life with Confidence
Knowing how to know if you have been hacked is essential to keeping your personal data and online accounts safe. Spotting the signs early can help you act fast. The sooner you respond, the better you can prevent further damage and safeguard your sensitive information.
Don’t leave your digital security to chance. If you’re concerned about potential threats or need expert assistance, OneCloud IT Solutions is here to help.
Contact us today to secure your online presence and regain control of your digital life.Sources: Australian Bureau of Statistics ; ACSC ; Australian National University (ANU) ; JURISTnews ; Microsoft ; Cyber Security News
