8i. Consider security controls
Digital security controls are measures that organisations implement to protect their data and systems from cyber threats.
Security is one area where there may be some trade-offs with environmental sustainability that need to be negotiated.
Likely Lead Roles
Security architect
Sub-actions
8i. (i) Optimise backups and redundancies
8i. (ii) Choose the right cryptographic algorithms
8i. (iii) Consider optimal patch management
8i. (iv) Consider timing of security scans and updates
8i. (v) Calculate the emissions of security controls
(i) Optimise backups and redundancies
Shorten backup retention times and remove duplicate backups where possible.
You should consider:
• if shortening retention times is possible
• the necessity of duplicates and storage
Environmental benefit:
Reduced data storage.
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(ii) Choose the right cryptographic algorithms
Cryptographic algorithms are formulas that encrypt and decrypt data. Their energy consumption varies depending on factors like their complexity, application, and computing environment or platform.
Where possible, choose cryptographic algorithms that provide the necessary level of security whilst using no more energy than necessary.
Environmental benefit:
Choice of algorithms can save on energy consumption
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(iii) Consider optimal patch management
Optimize security updates to minimize unnecessary software downloads and system reboots.
Environmental benefit:
Save on resource consumption.
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(iv) Consider timing of security scans and updates
Schedule intensive security scans and updates during off-peak hours to take advantage of lower-carbon electricity.
Environmental benefit:
Reduce carbon intensity of electricity used.
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(v) Calculate the emissions of security controls
Calculating the emissions of security controls allows us to identify potential reductions.
Environmental benefit:
Identify opportunities to reduce resource consumption.