Protecting your accounts and devices from hacking is no longer optional: your email, your social media, your online banking, your photos, your work, and even your business They live in the digital world. And, even if you're not a cybersecurity expert, you can still significantly protect your online life if you know what to look for and what habits to change.
Furthermore, the outlook doesn't help: Cyberattacks are on the rise, phishing is becoming more sophisticated, and password leaks are commonplace. And we connect from anywhere and with any Wi-Fi network. The good news is that by combining several layers of protection (account settings, strong passwords, updated devices, VPN, security software, and common sense), you can greatly reduce the risk of data theft, account hacking, or malicious use of your information.
Signs that your accounts or devices may be at risk
Before discussing how to protect yourself, it's important to understand when the alarm bells should ring. Recognize early on if something strange is happening with your accounts or your mobile phone It allows you to react quickly and limit damage.
Some very typical signs of hacking or attempted hacking of accounts are that suddenly You can't access your email, social media, or online banking because your password no longer worksYou may receive login notifications from countries or devices that don't seem right, or you may see emails and messages sent from your account that you never wrote.
There are also clear clues on your devices: Your mobile phone or computer is running much slower for no reason, and programs you don't remember installing are appearing.Pop-up windows are constantly opening, your battery drains quickly, or your phone gets incredibly hot even though you barely use it.
On the economic front, it is worth examining the movements very closely: strange payments, online purchases you didn't make, unknown transfers Repeated charges of small amounts may indicate that someone is testing your bank details.
If you add to all this having recently received Phishing emails or SMS messages, password leaks on services where you are registered or password recovery attempts that you did not request, it's time to take action without waiting another day.
How to monitor and strengthen the security of your Google account
Your Google account is usually the center of your digital life: email, mobile backups, documents, photos, access to other servicesIf someone gets in there, they could do serious damage, so it needs to be pampered.
Google uses a very visual notification system called Recommended actionsThere you'll see a different colored exclamation mark icon. Blue indicates simple security tips, yellow indicates important pending steps, and red marks critical warnings that should be addressed immediately. When everything is in order, you'll see a green shield with a checkmark, indicating that, in principle, your account is well protected.
To consult it, simply Sign in to your Google account, click on your profile picture in the upper right corner, and go to “Recommended actions”From there you'll reach the Security Review, where Google shows you personalized recommendations to follow, even if you don't see any serious alerts.
If that section doesn't appear, you can go directly to “Manage your Google account” and, within that, go to the Security section.At the top, you'll also see a shield that summarizes the overall status. Even though everything is green, Google may still show you suggestions for further strengthening your account's protection.
If you are a particularly vulnerable person —for example journalist, activist or someone who may be the target of targeted attacks—, Google offers an Advanced Protection Program that adds more layers of security, based mainly on physical keys and extra restrictions on less secure applications.
Security review: recovery options, 2FA, and app control
One of the most powerful tools you have at your disposal is the Google Security ReviewFrom there you can review several key points that make the difference between an account that is easy to attack and an account that is very difficult to take down.
The first thing to do is check and update. your account recovery optionsMake sure the recovery phone number and email address are still yours, that they're not outdated, and that you have real access to them. If you ever lose your password or someone tries to steal it, this information is your lifeline.
The second essential block is the two-step verification (2FA)Even if you already have it enabled, check which second factor you're using. Relying solely on SMS is better than nothing, but it's still vulnerable to certain techniques (SIM swapping, spoofing, etc.). Whenever possible, use more robust methods like authenticator apps or physical security keys.
Within this same review you can analyze Which apps and services have access to your Google account?Over time, we authorize apps that we later forget about. The more apps that have permission to read your data, the more potential doors you open to attack. It's good practice to remove the ones you no longer use or that you don't trust.
Finally, it is advisable to configure secure unlocking methods on your devices (Robust PIN, fingerprint, reliable facial recognition) to prevent anyone with physical access to your mobile or laptop from directly accessing your already logged-in accounts.
Always keep your browser, operating system, and applications updated.
A very common mistake is thinking that only passwords are important and forgetting that Many attacks slip through holes in the software itself.If your browser, operating system, or apps are outdated, you give attackers an advantage.
Start with the browser: Always use the latest version of Chrome, Firefox, Edge, or whichever browser you prefer.Updates fix security vulnerabilities that, if left uninstalled, would otherwise be vulnerable to exploitation. If you use Chrome, you can check for updates directly from the Chrome menu; for other browsers, consult the developer's official support page.
Next, check the operating system. On Windows, macOS, Android or iOS You should have automatic updates enabled, or at the very least, install them as soon as they're offered. It's not just about new features, but also about patching known and actively exploited vulnerabilities.
In the case of applications, the recommendation is similar: Keep them up to date and avoid continuing to use programs that are no longer updated.On Android, you can enable automatic updates from Google Play; in addition, Google Play Protect analyzes apps and alerts you if any appear harmful.
For other devices (smart TVs, consoles, IoT devices) it's a good idea to check the manufacturer's website to see if there are any pending updates. Connected devices that become "outdated" without patches become perfect backdoors for an attacker who wants to break into your home network.
Unique, secure, and well-managed passwords
Using a single password for everything is practically giving away your accounts to anyone who manages to leak a website where you use it. If you reuse your password on multiple sites, it only takes one of them to be compromised. so that the attacker can try that same password on your email, your social networks, or your online banking.
Ideally, each important account should have a unique, long, and complex passwordcombining uppercase letters, lowercase letters, numbers and symbols, and avoiding obvious personal information such as birth dates, pet names or easily guessed patterns.
Since memorizing dozens of strong passwords is impractical, the practical solution is to use a reliable password managerThis can be your browser's built-in password manager (like Chrome's) or a specialized one. These managers generate strong passwords, store them encrypted, and you only need to remember one very strong master password.
If you want to know the extent of your risk, you can use tools from password review These indicators tell you if any of the security measures you have stored have been exposed in a data breach, if they are too weak, or if you are using them in multiple services. This way, you can replace the most vulnerable ones first.
Another interesting enhancement is using extensions like Password Protection Alerts in ChromeThese alerts notify you if you enter your Google password on a site that isn't actually Google. This helps detect phishing pages that try to impersonate the legitimate website.
Fewer apps, fewer extensions, less risk
The more programs and extensions you install, You offer more attack surfaceEvery poorly designed or abandoned app can be a hole through which an attacker can slip, especially on devices that contain sensitive information like your everyday mobile phone or your work laptop.
Do a clean from time to time and Uninstall everything you don't use or don't really needThis applies to mobile apps, computer programs, and browser extensions. It reduces the temptation to install software from unknown sources or unofficial websites.
On Android and iOS, try Download apps only from Google Play or the App StoreOn your computer, download programs only from official manufacturer websites or trusted stores. Avoid .apk files from dubious sources, cracks, or "miracle" installers that often come bundled with malware.
If you have older devices or devices that you no longer use but are still connected, you might consider disconnecting them from the network. An old gadget, without patches, and with access to your WiFi It can serve as an entry point to your entire home network.
How to identify and avoid suspicious messages, emails, and websites
Many attacks do not come about through brute force, but through deception. Phishing and other scams prey on haste and trust. so that you accidentally give away your password or install malware. It's vital to train your eyes to avoid falling for it.
First of all, be clear that No reputable company will ask for your password via email, SMS, or phone call.If you receive a message claiming to be from your bank, your mobile operator, or a well-known platform asking for sensitive information, it's most likely a scam attempt.
Before clicking on any link, Carefully check the sender's address and the URLOften they change a letter, add an extra hyphen, or use unusual domains that look similar to the original. Poorly translated emails with grammatical errors or slightly different logos are also common.
If you use Gmail on a computer, you can hover the mouse over the links without clicking To see the actual URL they're pointing to, look in the bottom left corner. If it doesn't match what you expect, it's best to delete the message and, if it's from a known entity, open the website by typing the address into your browser.
When browsing, trust your browser's warnings. Chrome and other modern browsers alert you if a website contains malicious content or tries to install unwanted software.The sensible thing to do is not to ignore these signs: if they warn you, it's for a reason.
Public WiFi, VPN and encryption: protect your communications
Public WiFi networks—in cafes, airports, shopping malls—are incredibly convenient, but They're also a real treat for hackers.Many don't even require a password, which facilitates Man-in-the-Middle attacks, where an attacker places themselves in the middle and spies on or modifies the traffic.
Whenever possible, avoid Connect to open WiFi networks to perform sensitive tasks such as online banking, accessing business accounts, or sending important documents. If you need to use the internet on the go, sharing your mobile's 4G/5G data with your laptop via a personal hotspot might be a better option.
A highly recommended level of protection is to use a VPN (virtual private network)A VPN creates an encrypted tunnel between your device and the internet, so your traffic travels hidden, even from your Wi-Fi provider or mobile carrier. It also hides your real IP address, making it harder to track.
Not all VPNs are the same: Free ones often have strong limitations, intrusive advertising, or questionable privacy policies.If you're truly concerned about privacy and want to reduce the risk of spying on public networks, it's worth investing in a reputable paid VPN.
Beyond the VPN, it's essential to make sure that The websites through which you send personal data should use HTTPSYou'll see a padlock in the address bar and the URL will start with https://. That means the connection between your browser and the server is encrypted and no one should be able to read what you send along the way.
Reduce your digital footprint and be careful what you post
The best way to prevent misuse of your information is to There shouldn't be more data than necessary circulating out thereWe often share personal details on social media without thinking: photos with visible addresses, poorly covered documents, real-time locations…
Start by reviewing your social media privacy settings: Make your profiles as private as possible and limit who can see your postsInstead of "public", select "friends" or specific lists, and reduce who can send you friend requests or messages.
Disable features that filter more account information: automatic location in posts, facial recognition, interest buttons and other options that help create a very detailed profile of your life. Sharing on social media that you're not at home can even pose a physical risk.
It's also a good idea to clean up your email and subscriptions: Unsubscribe from newsletters and mailing lists that no longer benefit you. Consider using a secondary email address only for quick registrations, one-off purchases, or forms. Reserve your primary address for more trusted environments.
With Internet of Things (IoT) devices—cameras, smart speakers, connected light bulbs—protect your access with strong passwords, If possible, put them on a separate guest WiFi network. And disconnect from the network anything you're not using. Anything connected is vulnerable to hacking.
Anti-hacking software, antivirus and password managers
Although there is no "perfect shield", there are tools that can make life very difficult for anyone trying to break into your devices. A good antivirus and antimalware program, privacy-focused browser extensions, and a password manager. They're almost a basic kit.
Modern antivirus programs not only detect classic viruses, but also Keylogger-type Trojans that record what you type, ransomware, and other threatsIt is recommended to schedule full scans from time to time and review any alerts that appear.
Additionally, some browser extensions help to Block trackers and limit certain websites from tracking your every moveThis not only improves your privacy from advertising companies, but also reduces your exposure should any of those services be attacked.
On your mobile device, it might be a good idea to install an app that Allows you to remotely erase all data in case of loss or theftIf you have devices synced with your Google or iCloud account, you can locate the phone from them and, if necessary, wipe it remotely.
And, as the centerpiece, the password manager reappears: Without it, it's almost impossible to manage unique and complex keys for each siteJust make sure to protect access to the manager with a very strong master password and, if possible, with a second factor.
Protecting your mobile phone against hackers: habits and warning signs
The mobile phone is almost the most critical device: It carries your 2FA codes, your banking apps, your emails, your social networks, your photos, your entire lifeThat's why it's a favorite target for criminals, both physically and digitally.
To strengthen your security, always keep the updated operating systemBoth Apple and Google constantly release patches to cover vulnerabilities that attackers are already exploiting; if you ignore these updates, you remain vulnerable.
Avoid at all costs charge your mobile phone in unknown public USB portsAlthough they may seem like simple chargers, there is a risk that someone could exploit that physical connection to try to inject malware or obtain information from your device.
In the area of spam and phishing via SMS or messaging, apply the same caution as with email. Be wary of messages that rush you, mention pending packages, unexpected fines, or surprise prizes.If you have any doubts, contact the company through its official channels, never replying to the suspicious message.
It is also highly recommended make regular backups of your contacts, photos, and important documents. This way, even if your phone is lost or damaged (or encrypted by ransomware), you can recover your information and not have to start from scratch.
Common types of attacks: phishing, ransomware, and more
Knowing the most common attacker tactics helps you recognize them instantly. One of the most popular is the PhishingMessages that impersonate legitimate entities (banks, courier companies, well-known platforms) to trick you into entering your credentials on a fake website or downloading a malicious file.
To defend yourself, get used to Check the sender's web address and email very carefully.Look for potential translation errors or sloppy formatting, and be wary of messages that urge you to act quickly and include direct links to "solve a problem." The more urgent they seem, the more likely they are to try to scam you.
Another growing attack is the ransomwareThis is software that infects your device, encrypts your files, and demands payment to recover them. Many cases begin with a seemingly normal SMS or email (for example, a supposed courier notification with a link to reschedule a delivery).
In the business and self-employed sector, these types of attacks can be devastating: hijack invoices, customer databases, or key documentation It can paralyze your business. This is where specific cybersecurity solutions for SMEs and insurance policies that include 24/7 technical support come into play.
Other signs of possible mobile phone hacking should not be overlooked: Calls or SMS messages you didn't initiate, strange notifications of copied texts or location turned off, strange noise on calls or an abnormally slow shutdown and startup of the device.
Additional settings and best practices for daily use
In addition to everything mentioned above, there's a set of adjustments and habits that, combined, make hacking you much more difficult. Start with Always enable two-factor authentication on all accounts that allow it: email, social networks, payment services, work platforms, etc.
Avoid installing apps from outside your system's official stores and critically review the permissions that applications request.If a notes app wants access to your location, microphone, and contacts, ask yourself if it's really necessary.
Uninstall software you no longer use without fear, and on computers and mobile devices, Do not routinely work with an account that has administrator privilegesThus, even if a malicious program runs, it will have a harder time changing deep system settings or installing other components.
Also disable the autofill of sensitive data in the browser (address, phone number, even business cards). It saves time, yes, but if someone compromises your computer, they can directly read what the browser saves to fill out forms.
Finally, get used to Log out of important services when you're finishedThis is especially true on shared computers or devices that might be used by others. Many banking platforms automatically log you out after a while, but on social media and other services, the session often remains open indefinitely.
Taking all of the above into account—strengthening your key accounts, using unique passwords, reviewing permissions and apps, keeping your software updated, browsing responsibly, encrypting your communications when necessary, and limiting the information you post—you'll find that stealing your data, being logged out of your own accounts, or having your personal information exploited will no longer be so easy, and although the risk will never be zero, your digital life will be considerably more protected against any hacking.