Welcome to LearnCyberSecurityWithRavi
This channel is dedicated to simplifying complex cybersecurity concepts, increasing security awareness, and breaking down recent breaches so everyone can understand how attacks really happen.I also cover techniques used by threat actors, helping you learn how to defend against them.
Alongside tutorials and breakdowns, I host podcasts with industry professionals from IT and cybersecurity, where we discuss the latest trends, real-world experiences, and how the security landscape continues to evolve.
If you're passionate about cybersecurity, ethical hacking, or staying safer online then you're in the right place.
Disclaimer: Hacking without permission is illegal.
This channel is strictly educational for learning about cyber-security in the areas of ethical hacking and penetration testing so that we can protect ourselves against real hackers.
Email:teja60204@gmail.com for any queries
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Happy Learning
-Ravi
RaviTeja Mureboina | Cybersecurity
Managing the Risks of Client Side Code Execution
Executing client side code introduces inherent uncertainties, as users lack visibility into the underlying actions of the code. While scripts or applets may appear to function as intended, they could potentially conceal malicious behavior.
For instance, a seemingly harmless calculator app may display accurate results, yet secretly transmit sensitive data to unauthorized destinations.
To mitigate these risks, security teams employ several critical strategies:
1. Code Signing: Verifies the integrity of the code, ensuring it hasn't been altered or tampered with.
2. Strict Execution Policies: Establishes controlled environments for third party scripts, limiting their scope and potential impact.
3. Network Monitoring: Continuously tracks data transfers to detect and alert on unauthorized or unexpected activity.
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#CyberSecurity #ClientSideSecurity #CodeSigning #DataProtection #NetworkMonitoring #Infosec #RiskManagement
5 hours ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Exploring Symmetric Multiprocessing (SMP)
Symmetric Multiprocessing (SMP) is a powerful computing architecture where multiple processors work together in perfect harmony to complete tasks quickly and efficiently. In an SMP system, every processor is treated equally, sharing the same operating system, memory, and data bus.
How it works:
Think of SMP like a group of students collaborating on the same assignment using one shared notebook. Each student (processor) follows the same instructions and contributes equally to complete the task faster. Since all processors are in sync, workloads are evenly distributed, leading to faster processing times and smoother performance.
Why it’s great for simple tasks:
SMP systems shine when it comes to handling straightforward operations at high speeds. They’re perfect for situations where tasks can be parallelized, leading to enhanced productivity without the complexity of managing multiple, independent systems.
Key Takeaway:
SMP’s ability to distribute tasks among multiple processors makes it an ideal solution for high performance, multi-tasking environments, particularly when speed and efficiency are crucial.
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#computerscience #TechTalk #SymmetricMultiprocessing #SMP #ParallelComputing #HighPerformance #Computing
12 hours ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Third Party Attacks: A Growing and Costly Threat
Third party attacks are one of the most dangerous and costly cybersecurity threats facing organizations today. These attacks happen when threat actors compromise a vendor, service provider, or software supplier, gaining access to downstream customers. Because attackers bypass traditional security controls, these incidents can impact multiple organizations simultaneously.
For example, attackers might breach a cloud software provider and move laterally across client systems, harvesting credentials and exfiltrating sensitive data from multiple companies at once.
Financially motivated attacks like these are becoming more common, with supply chain breaches now averaging nearly $4.91 million per incident.
These attacks are especially difficult to detect and contain due to complex vendor relationships and long dwell times. But there’s hope organizations can defend themselves by:
1. Conducting thorough vendor risk assessments
2. Enforcing strict access controls
3. Continuously monitoring third party activity
4. Including vendors in incident response planning
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#Cybersecurity #SupplyChainSecurity #ThirdPartyRisk #DataBreach #VendorManagement #RiskManagement #InfoSec #SecurityAwareness
23 hours ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Homograph Attacks: A Hidden Cybersecurity Threat
Did you know that a website or email can look completely legitimate but still be fake? This is the trick behind homograph attacks. Attackers use look alike letters from other languages (like Cyrillic or Greek) that visually match English letters to deceive users.
1. These attacks are commonly used in phishing emails, fake domain names, and shared links. A single hidden character can turn a trusted brand name into a malicious trap often without users noticing.
2. With the rise of AI, these scams are becoming even more convincing. Professionally written emails combined with homograph characters make detection harder than ever.
3. Awareness is the first line of defense. Always double check links, be cautious with urgent messages, and rely on security tools that can detect mixed character sets.
Cybersecurity isn’t just about technology it’s also about being informed.
blog: mraviteja9949.medium.com/homograph-attacks-when-a-…
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#cybersecurity #technology #awarness
1 day ago | [YT] | 4
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RaviTeja Mureboina | Cybersecurity
Applets and Client Side Security Considerations
Applets are small programs delivered from a server to execute locally on a client machine. By shifting processing from the server to the user’s system, they can improve performance and efficiency for example, running a mortgage calculator on the client rather than the bank’s infrastructure.
From a security perspective, this approach involves executing third party code, which introduces additional risk. As a result, many organizations limit or fully disable applet support and favor modern, sandboxed technologies over legacy add ons.
Effective risk mitigation includes restricting outdated applet functionality, adopting secure client side frameworks, and permitting execution only from trusted and verified sources.
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#CyberSecurity #ClientSideComputing #RiskManagement #InformationSecurity #SecureTechnology
1 day ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Understanding Mobile Code and Its Security Implications
Modern web browsers don’t just render websites, they also execute code sent from remote servers a process known as mobile code. While this functionality enables dynamic and interactive web experiences, it also introduces security risks.
By automatically running executable code from websites, browsers trust that it will perform as expected. However, if the code is malicious or compromised, it can put your system at significant risk.
Best Practices to Enhance Security:
1. Regularly Update Your Browser and Operating System: Keeping software up to date ensures that known vulnerabilities in mobile code handling are patched.
2. Exercise Caution with Unknown Websites: Avoid executing code from untrusted or suspicious sources.
By adopting these practices, you can mitigate potential threats and strengthen your cybersecurity posture.
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#Cybersecurity #WebSecurity #TechLeadership #SecureYourData #DigitalTransformation
2 days ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Nation State Cyberattacks on the Rise
Nation state cyberattacks are becoming more sophisticated and impactful, targeting telecoms, critical infrastructure, and third party providers. These attacks often combine cyber espionage, social engineering, and advanced deception to steal credentials and maintain persistent access.
Here are some notable examples:
1. China affiliated Groups:
Salt Typhoon: Espionage focused attacks targeting major telecom networks.
Volt Typhoon: Malicious code pre positioned in critical infrastructure, escalating the risk of physical disruption.
2. North Korea affiliated Actors:
Fake job applications to infiltrate U.S. companies, harvesting credentials and executing fraudulent financial transactions.
3. Iran linked Groups:
Leveraging generative AI and chatbots to amplify leaked information in hack and leak campaigns aimed at journalists.
These sophisticated, high targeted attacks have consequences far beyond the breach itself, and can disrupt operations on a global scale.
What can organizations do to stay protected?
1. Implement strong access controls
2. Use continuous monitoring for abnormal activities
3. Enforce robust verification processes
4. Train employees to recognize social engineering tactics
By proactively enhancing security measures, we can defend against these growing threats.
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#CyberSecurity #NationStateThreats #Infosec #AI #CyberEspionage #CyberDefense #CyberAwareness #CriticalInfrastructure #SocialEngineering
2 days ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Ransomware Attacks: The Growing Threat to Organizations
Ransomware continues to be one of the most disruptive cyber threats today, with breaches increasing by 12% year over year. What's more concerning is that attackers are not just encrypting data anymore they are using aggressive extortion tactics, threatening to release sensitive information, harass employees, and disrupt critical operations.
Take, for example, the Scattered Spider group, which often gains access through social engineering, targeting multiple industries to deploy ransomware. Similarly, LockBit reemerged in early 2025 with its LockBit 4.0 toolkit, launching sophisticated campaigns against private sector organizations in the United States.
The impact of these attacks can be severe: prolonged downtime, operational disruption, and skyrocketing recovery costs. However, organizations are adapting. Recent surveys show that 63% of organizations chose not to pay a ransom last year, reflecting stronger incident response planning, robust backups, and improved recovery strategies.
To defend against ransomware, organizations should:
1. Maintain up to date backups to ensure data recovery
2. Train employees on phishing and social engineering tactics
3. Implement rapid response protocols to contain attacks quickly
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#Ransomware #CyberSecurity #IncidentResponse #DataProtection #CyberResilience #PhishingAwareness
2 days ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
Domain Hijacking: A Silent but Serious Cyber Threat
Your domain name is more than just a web address it’s a critical business asset. Domain hijacking occurs when attackers gain unauthorized control of a domain, often by exploiting weak registrar security or stolen credentials.
The impact can be severe: fake websites, phishing attacks, loss of customer trust, and brand damage. It’s important to note that domain expiration is not hijacking, but it can still put your domain at risk if auto renewal isn’t enabled.
How to stay protected:
1. Enable multifactor authentication (MFA) on your domain registrar account
2. Use strong, unique passwords
3. Set up auto renewal and verify payment details
4. Monitor DNS and registration changes
A few simple steps can prevent a costly and reputation damaging incident. Stay proactive, stay secure.
Blog: mraviteja9949.medium.com/domain-hijacking-what-it-…
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#CyberSecurity #DomainSecurity #DomainHijacking #InfoSec #DigitalAssets
3 days ago | [YT] | 0
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RaviTeja Mureboina | Cybersecurity
The Growing Threat of AI-Enhanced Phishing
Phishing attacks have always been a concern for businesses, but with the rise of generative AI, the risk has grown exponentially. Attackers can now craft highly convincing emails and messages that appear completely legitimate. These messages can reference real projects, colleagues, and company activities, making them far more difficult to spot.
How can we protect ourselves from this new, AI-powered threat?
1. Verify unexpected requests via a separate channel before taking action.
2. Be cautious with links even if the message seems legitimate.
3. Leverage AI based email security tools that detect suspicious patterns and potential threats.
As AI continues to evolve, so will the tactics of cybercriminals.
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#CyberSecurity #AI #Phishing #EmailSecurity #TechAwareness #DataProtection #email #AIEnhancedPhishing
3 days ago | [YT] | 0
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