Project 2 Cloud computing

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riskmatrix.pdf

Cloud Computing Risk Assessment Module

As vulnerabilities are discovered you can record them and evaluate the level of risk using this report.

Potential Best Practice Control Comments Organizational Owner

None High High High

None High High High

Adversarial outsider (e.g., hacker) Low High Low No additional control necessary

Adversarial insider or outsider Moderate High Moderate

Adversarial outsider (e.g., hacker) Moderate High Moderate

Adversarial outsider (e.g., hacker) None Moderate High Moderate

Adversarial insider or outsider None Moderate High Moderate

Download of cloud information Users None High High High

Corruption during transit Accidental Very Low High Low No additional control necessary

Service outage at cloud provider Accidental or environmental None Moderate High Moderate

Accidental or environmental None High High High

Loss of local power Environmental None High High High

The following is intended as a sample risk assessment for health care organizations that utilize cloud services. It is intended to address the risks to confidentiality, integrity, and availability that the health care organization should consider addressing. It is not intended to address the risks to the cloud provider, who should separately perform its own risk assessment. The identified risks are examples, and should be modified based on the specific circumstances of the cloud provider, who likely will have a different set of existing controls, different risk levels, and may face additional categories of risks. Recommended Best Practice Controls are potential ways to address risks and are not intended to represent the only appropriate controls.

Vulnerability Name

Risk Description

Threat Source

Existing Controls

Likelihood of Occurrence

Impact Severity

Risk Level

Describe a particular weakness or flaw in your security that could be

exploited by a threat source to cause a security violation or breach.

Describe, in business terms, the type of harm to the organization if this vulnerability is exploited

by a threat source.

Describe the threats that could take advantage of this vulnerability.

Consider the 4 categories of threats: Adversarial, Accidental, Structural,

Environmental; as well as more specific examples such as external / internal, users, visitors, virus, natural

hazard, etc.

Describe the safeguards already in place that reduce this risk. Consider physical, technical and administrative

safeguards.

Very High, High, Moderate, Low,

Very Low

Very High, High, Moderate, Low,

Very Low

Very High, High,

Moderate, Low, Very

Low

Give a recommendation for the best new safeguard(s) that can

reduce the risk from this vulnerability further.

Need to assign an owner (accountability

and follow-up)

Cloud provider fails to periodically conduct a risk assessment including penetration testing (including web

application security)

Information maintained by the cloud provider is compromised

Adverserial, accidental, structural, environmental, etc.

Obtain assurances that cloud provider conducts periodic risk

assessments, including information about who

conducts risk assessment, how often, and whether such

assessments include penetration testing.

Cloud provider has inadequate administrative, physical, and

technical safeguards

Information maintained by the cloud provider is compromised

Adverserial, accidental, structural, environmental, etc.

Obtain documentation that cloud provider has a

comprehensive security program that adheres to a

recognized framework (e.g., ISO) and is periodically

reviewed by a third party.

Unauthorized access during transmission to cloud provider

Information is intercepted and exploited by an unauthorized

third party during transmission to the cloud provider

Information sent to cloud provider is encrypted in transit

Weak password protections for cloud services

Unauthorized person is able to obtain access to information by

guessing a password

Vendor default password and no administrative password

policy

Turn on vendor feature requiring strong passwords and

implement policy prohibiting weak password practices

Unlimited password attempts for cloud services

Unauthorized person uses automated attack to obtain

passwords

Vendor default does not limit password attempts

Turn on vendor feature limiting failed login attempts

Social engineering attempt to obtain password to cloud services

Unauthorized person obtains password by posing as insider

(e.g., IT department)

Institute policy and provide training that users may not

share passwords with others, including IT department

Password to cloud services is written down and available to

unauthorized persons

Unauthorized person obtains copy of written password to

cloud services

Institute policy and provide training that users may not write down passwords and

leave unattended

Authorized user downloads local copy of information from cloud onto unsecure device, which is

lost or stolen

Determine appropriate download policy (e.g.

information may only be downloaded in limited

circumstances and only to properly secured devices)

Information is partial or incorrect (e.g. due to packet

loss), resulting in patient safety concerns due to incomplete

medical information

Software application checks integrity of transmitted data

Lack of access to information, potentially including electronic

health records and billing information

Evaluate business continuity and disaster recovery options (e.g. from cloud provider or

through on-premise recovery) and implement and test

appropriate solution.

Service outage at local internet service provider

Lack of access to information, potentially including electronic

health records and billing information

Maintain reasonably current local backup of critical

information and test ability to recover information

Lack of access to information, potentially including electronic

health records and billing information

Maintain backup generator for powering critical IT systems

and use local backup