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Hidden Markov Model (HMM)

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Hidden Markov Model (HMM)  VIDEO LINK:  https://youtu.be/YIGCWNG8BIA A Hidden Markov Model (HMM) is a statistical model in which the system has hidden states that cannot be directly observed, but produce observable outputs. It is based on the Markov property, meaning the next state depends only on the current state. Video Chapters: HMM in Artificial Intelligence 00:00 Introduction 00:31 Statistical Model 00:54 HMM Examples 02:30 HMM 03:10 HMM Components 05:23 Viterbi Algorithm 06:23 HMM Applications 06:38 HMM Problems 07:28 HMM in Handwriting Recognition 11:20 Conclusion  HMM COMPONENTS A Hidden Markov Model (HMM) is a statistical model in which the system has hidden states that cannot be directly observed, but produce observable outputs. It is based on the Markov property, meaning the next state depends only on the current state. An HMM consists of states, observations, transition probabilities, emission probabilities, and initial probabilities. It is commonly used in a...
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Security Issues in Cloud Computing

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1. Account Hijacking 

Attackers can access user accounts remotely. Attackers can access data stored on the cloud.

Methods of Hijacking: Reused Password and Scripting Bugs [in April 2010 Amazon faced crossed-site scripting bug]. 

2. Insider threat

An Attack from inside your organization [Business Partnership]. Employees can use their authorized access to an organization’s cloud-based services. Employees can misuse or access information such as 

Customer accounts, Financial forms, and other sensitive information.

3. Phishing and social engineering attacks

Once login information or other confidential information is available. A malicious user can log into a system easily as the system is accessible from anywhere.

4. Malware injection

Malware Injection means Code or Scripts embedded into cloud services.  Malicious code can be injected into cloud services. Injected code is viewed as part of the software or service that is running within the cloud servers themselves.

5. Security issues faced with saas, Iaas
Data theft.
Lack of staff with the skills [for cloud security management].
Misuse of data.
Advanced Attacks against cloud service providers.
Inability to prevent malicious attacks. 
Inability to monitor cloud workload systems.  

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