Apple and Samsung Security: How to Protect Your Phone From Vulnerabilities
Apple and Samsung make two of the most trusted phone brands on the planet, and that’s precisely why they’re also two of the most heavily scrutinised by security researchers.
Barely a few months go by without India’s Computer Emergency Response Team (CERT-In) flagging a fresh batch of high-severity vulnerabilities in iOS, iPadOS, macOS, or Samsung’s Android builds.
Most recently, CERT-In’s September 2026 advisory (CIVN-2026-0468) listed over 100 security flaws spanning nearly the entire Apple ecosystem, from the kernel to WebKit to Bluetooth.
If you own an iPhone or a Galaxy phone, this isn’t a one-time warning you read and forget. It’s an ongoing pattern. This guide explains what these advisories actually mean for you, why they keep happening, and exactly what to do to stay protected, whether you’re on iOS or Android.
Quick answer: Both Apple and Samsung ship monthly or near-monthly security patches addressing dozens of vulnerabilities at a time. The single most effective thing you can do is turn on automatic software updates and actually install them promptly. Most real-world exploitation targets devices running outdated software, not fully patched ones.
Why CERT-In Keeps Issuing These Warnings
CERT-In, which operates under India’s Ministry of Electronics and Information Technology, regularly reviews vulnerability disclosures from Apple, Samsung, Google, and other major vendors, then issues advisories rating the severity and explaining the risk to Indian users.
This isn’t unique to India. Similar national CERTs worldwide (US-CERT, CERT-EU, and others) issue comparable advisories. But CERT-In’s notices are the ones most relevant if you’re using a device in India.
A few things explain why these advisories are so frequent:
- Modern phones are enormously complex. An iPhone runs millions of lines of code across dozens of components like the kernel, WebKit (which powers Safari), ImageIO, Bluetooth stacks, and more. Each is a potential source of bugs.
- Security researchers are constantly probing for flaws, both independently and as part of vendor bug-bounty programs, and responsibly disclosing what they find.
- Samsung ships monthly Security Maintenance Releases (SMRs) on top of Google’s own Android security patches, since Samsung’s One UI adds its own apps and components (like Knox, Samsung Members, and various pre-installed widgets) that can carry their own bugs.
- Apple bundles fixes across its whole ecosystem in point releases. iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and Safari often get patched together, which is why a single advisory can list 80–100+ individual CVEs at once.
None of this means these devices are less secure than the alternative. It means vulnerability disclosure and patching are working as intended. The real risk shows up only when patches are available but not installed.
Related: Types of Computer Viruses and How to Avoid Them
What Kinds of Vulnerabilities Get Flagged
CERT-In advisories tend to group flaws into a few recurring categories. Recognising these helps you understand what’s actually at stake:
| Vulnerability Type | What It Means in Practice |
|---|---|
| Remote code execution (RCE) | An attacker can run their own code on your device, often just by getting you to open a malicious file or visit a compromised webpage |
| Privilege escalation | Malware or an attacker with limited access can grant itself higher-level control over the device |
| Sensitive information disclosure | Apps or attackers can read data they shouldn’t have access to, cached memory, credentials, session tokens |
| Security restriction bypass | Built-in protections (like app sandboxing) can be circumvented |
| Denial of service (DoS) | The device or a specific app can be crashed or made unresponsive |
| Spoofing | An attacker can make malicious content appear legitimate (a fake website, a fake system prompt) |
Recent Apple advisories, for instance, have flagged issues in the WebKit engine that powers Safari, where simply loading a maliciously crafted webpage could lead to cross-site scripting or credential theft.
Recent Samsung CVEs have included improperly secured components in pre-installed apps like Samsung Members and Galaxy Editing Service, which could let a malicious local app perform actions it shouldn’t be able to.
How to Protect Your iPhone or iPad
1. Turn on automatic updates. Go to Settings → General → Software Update → Automatic Updates and enable both “Download iOS Updates” and “Install iOS Updates.” This is the single biggest factor in whether you’re protected against known vulnerabilities.
2. Don’t delay manual updates when prompted. If automatic updates are off, check Settings → General → Software Update regularly and install updates as soon as they’re available, ideally while charging and connected to Wi-Fi.
3. Enable Lockdown Mode if you’re a high-risk target. Journalists, activists, executives, or anyone who believes they could be targeted by sophisticated spyware can enable Apple’s Lockdown Mode (Settings → Privacy & Security → Lockdown Mode), which severely restricts the attack surface at the cost of some convenience features.
4. Pay attention to Apple’s threat notifications. Apple has periodically warned specific users, including some in India, that their devices may have been targeted by mercenary spyware. If you receive such a notification, treat it seriously and consider contacting a digital security organisation for guidance.
5. Keep Safari and other apps updated too. Vulnerabilities aren’t limited to the OS. Safari and any apps you’ve installed from the App Store should also be kept current via automatic app updates (Settings → App Store → App Updates).
6. Avoid sideloading or jailbreaking. Installing apps outside the App Store, or jailbreaking your device, removes several of iOS’s built-in security protections and significantly widens your exposure to malware.
Related: Google’s New Passkey Support Allows You to Sign in Without a Password
How to Protect Your Samsung Phone
1. Turn on automatic system updates. Go to Settings → Software update → Download and install, and enable Settings → Software update → Auto-download over Wi-Fi. Samsung ships monthly Security Maintenance Release (SMR) updates specifically to patch newly disclosed vulnerabilities.
2. Check your SMR level directly. Under Settings → About phone → Software information, you can see your current security patch date. If it’s more than one to two months old and no update is available yet, check Samsung’s official security advisory page for your model’s patch timeline.
3. Use Samsung Knox and Auto Blocker. Newer One UI versions include Auto Blocker (Settings → Security and privacy → Auto Blocker), which restricts installation of apps from unauthorised sources and blocks known scam-call and phishing patterns by default. Turn it on if you haven’t already.
4. Review app permissions for pre-installed apps too. Several recent Samsung CVEs involved pre-installed components (like Samsung Members or wallpaper apps) with improperly exported permissions. You can’t uninstall all of these, but keeping them updated via the Galaxy Store closes most of these gaps.
5. Avoid installing APKs from outside the Galaxy Store or Play Store. Sideloaded apps are a common vector for exploiting local, privilege-escalation-style vulnerabilities like several of the ones CERT-In has flagged in Samsung’s ecosystem.
6. Set a strong screen lock and enable Find My Mobile. Several disclosed Samsung vulnerabilities require local device access to exploit. A strong PIN, fingerprint, or face unlock meaningfully raises the bar for anyone trying to exploit them physically.
General Habits That Protect You Regardless of Brand
- Update promptly, every time. The gap between a patch being released and being installed on your device is the exact window most real-world attacks exploit.
- Be cautious with links and attachments, even from contacts you trust. Several flagged vulnerabilities are exploited via a malicious file, image, or webpage rather than an app install.
- Stick to official app stores. Both the App Store and Play Store/Galaxy Store screen for malware far more rigorously than third-party APK sites.
- Enable two-factor authentication on your Apple ID and Samsung account specifically. These are high-value targets since they can be used to reset other account credentials.
- Back up regularly, so that if a device is ever compromised, you can wipe and restore without losing your data.
- Watch for official threat notifications from Apple or Samsung directly. Never trust a similar-looking warning that arrives via email or SMS with a link, since these are commonly spoofed in phishing attempts.
If you want an extra layer of protection for banking and email logins specifically, a hardware security key like a YubiKey on Amazon works across both iPhone and Samsung devices and isn’t dependent on software patches to stay secure.
Related: How to Protect Your Bank Account from Hackers?
How to Check If Your Device Is Currently Vulnerable
- On iPhone/iPad: Settings → General → Software Update. Compare your version against the latest CERT-In advisory’s list of affected versions (usually published alongside the advisory on CERT-In’s official site).
- On Samsung: Settings → About phone → Software information. Check your Security patch level against Samsung’s official security update page for your specific model.
- Cross-check against CERT-In’s advisory list at cert-in.org.in, which publishes vulnerability notes (e.g., CIVN-2026-xxxx) with the specific affected version ranges for each disclosure.
- If your device is on an older, unsupported model that no longer receives security updates, treat that as a genuine risk factor. Consider whether your usage (banking, sensitive work data) justifies an upgrade.
Myth vs Fact
| Myth | Fact |
|---|---|
| “A CERT-In warning means my phone has already been hacked.” | No; advisories flag vulnerabilities that could be exploited if left unpatched. Installing the available update resolves the risk for most users. |
| “iPhones don’t get viruses or malware, so I don’t need to worry.” | iOS is more locked-down than most platforms, but it isn’t immune. RCE and privilege-escalation vulnerabilities are disclosed regularly, which is exactly why updates matter. |
| “Samsung’s extra apps and features make it less secure than a ‘plain’ Android phone.” | Extra pre-installed apps do add attack surface, but Samsung also ships frequent, dedicated security patches (SMRs) specifically to address issues in them. The key is installing those updates. |
| “If I don’t click on suspicious links, I’m safe from these vulnerabilities.” | Some flaws (like certain WebKit or ImageIO bugs) can be triggered just by loading a malicious webpage or opening a crafted image/file. Cautious browsing helps, but it’s not a substitute for patching. |
| “Once I update, I’m protected forever.” | New vulnerabilities are disclosed continuously. Staying protected means keeping automatic updates on permanently, not applying one fix and moving on. |
Related: What Are the Common Indicators of a Chinese Malware “Horse Shell” Infection?
Frequently Asked Questions
CERT-In (Indian Computer Emergency Response Team) is India’s national cybersecurity agency, operating under the Ministry of Electronics and Information Technology. It reviews vulnerability disclosures from vendors like Apple and Samsung and publishes advisories to alert Indian users and organisations.
No. An advisory flags vulnerabilities that could be exploited if your device remains on outdated software. It doesn’t mean your specific device has been compromised. Installing the relevant update resolves the risk.
Apple typically bundles security fixes into regular iOS/iPadOS point updates, often multiple times a year, with major advisories covering 80–100+ CVEs at once. Samsung ships monthly Security Maintenance Release (SMR) updates specifically for security fixes, on top of Google’s Android security patches.
CERT-In publishes the affected software version ranges (e.g., “iOS and iPadOS versions before 26.4”) with each advisory. Compare that against your current version under Settings → General → Software Update.
It generally means you’re on the latest available patch for your model and carrier. However, older or discontinued models may stop receiving updates altogether, which is a separate risk worth checking under Samsung’s official device support timeline.
For most everyday users, no. It disables several convenience features. It’s specifically designed for people at elevated risk of targeted attacks, such as journalists, activists, or executives handling sensitive information.
Yes, significantly. Jailbreaking and rooting remove built-in security protections like app sandboxing, making devices considerably easier to exploit, even for vulnerabilities that would otherwise be contained.
Reputable mobile security apps can help detect malicious apps and links, but they can’t patch underlying OS vulnerabilities. Installing official security updates remains essential regardless of antivirus use.
Don’t click links in unsolicited messages. Go directly to Settings on your device or the official Apple/Samsung website to check for genuine security notifications. Spoofed warning messages are a common phishing tactic.
A VPN encrypts your network traffic but doesn’t patch software flaws on your device. It’s a useful additional layer for privacy on public Wi-Fi, but not a substitute for installing security updates.
Samsung’s One UI includes many of its own apps and services beyond stock Android (Knox, Samsung Members, Galaxy widgets, and more), each of which can independently contain bugs. Hence the additional monthly SMR patch cycle specific to Samsung devices.
Yes, especially once a model stops receiving official software updates. At that point, any newly disclosed vulnerability affecting that OS version has no fix coming, which is a strong signal to consider upgrading if the device handles sensitive data.
CERT-In’s severity ratings reflect potential impact and ease of exploitation. “High” and “critical” both warrant prompt action, but critical advisories typically involve vulnerabilities that are easier to exploit remotely, with little to no user interaction required.
Neither platform is inherently “safer” in a way that should change your device choice. Both ship frequent patches precisely because both are actively and responsibly researched. The determining factor for your actual risk is how promptly you install available updates, not which brand you use.
CERT-In publishes vulnerability notes directly on its official website (cert-in.org.in), listing affected products, versions, and recommended actions for each disclosure.
Related: AutoSpill Vulnerability Explained: How Android Autofill Can Expose Passwords
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