{"id":37644,"date":"2024-10-10T10:00:00","date_gmt":"2024-10-10T08:00:00","guid":{"rendered":"https:\/\/www.cloudmagazin.com\/2026\/04\/26\/protect-data-during-processing-confidentially\/"},"modified":"2026-06-10T12:59:23","modified_gmt":"2026-06-10T10:59:23","slug":"protect-data-during-processing-confidentially","status":"publish","type":"post","link":"https:\/\/www.cloudmagazin.com\/en\/2024\/10\/10\/protect-data-during-processing-confidentially\/","title":{"rendered":"Confidential Computing: Protecting Data During Processing"},"content":{"rendered":"<p style=\"color:#6190a9;font-size:0.9em;margin:0 0 16px;padding:0;\">2 min read<\/p>\n<h2>Key Takeaways<\/h2>\n<ul>\n<li>Confidential Computing protects data during processing \u2013 not just at rest and in transit.<\/li>\n<li>Trusted Execution Environments (TEEs) isolate computations within hardware-protected enclaves.<\/li>\n<li>Intel SGX, AMD SEV, and ARM CCA are the three main hardware platforms for confidential computing.<\/li>\n<li>Cloud providers offer Confidential VMs and containers as managed services.<\/li>\n<li>Especially relevant for regulated industries: finance, healthcare, public sector.<\/li>\n<\/ul>\n<p style=\"color:#6190a9;font-size:0.9em;margin:0 0 16px;padding:0;\">3 min read<\/p>\n<hr style=\"border: none; border-top: 1px solid #ddd; margin: 2em 0;\">\n<p><strong>Encryption protects data at rest and in transit. But what happens during processing? At that moment, data must be decrypted in memory \u2013 making it vulnerable to privileged users, compromised hypervisors, and insider threats. Confidential Computing closes this final security gap.<\/strong><\/p>\n<h2>The Gap in the Encryption Chain<\/h2>\n<p>Modern IT systems encrypt data at rest (on disk) and in transit (over networks). However, during processing in RAM, data must be decrypted \u2013 a system-level requirement. This is precisely where threats emerge: a compromised hypervisor, malicious cloud administrator, or side-channel attack can access unencrypted memory.<\/p>\n<p>For most workloads, this risk is acceptable. But for regulated sectors \u2013 banking, insurance, healthcare, public administration \u2013 it&#8217;s a compliance blocker. Confidential Computing eliminates this gap through hardware-based isolation.<\/p>\n<div style=\"margin:32px 0;display:flex;flex-wrap:wrap;gap:12px;\">\n<div style=\"flex:1;min-width:160px;background:#004a59;border-radius:10px;padding:24px 20px;color:#fff;\">\n<div style=\"font-size:clamp(1.5em,5vw,2.4em);font-weight:800;color:#0bb7fd;line-height:1;\">15%<\/div>\n<div style=\"font-size:0.8em;margin-top:8px;opacity:0.8;line-height:1.3;\">depending on workload and TEE technology \u2013 acceptable for most use<\/div>\n<\/div>\n<div style=\"flex:1;min-width:160px;background:#002535;border-radius:10px;padding:24px 20px;color:#fff;\">\n<div style=\"font-size:clamp(1.5em,5vw,2.4em);font-weight:800;color:#0bb7fd;line-height:1;\">10,000<\/div>\n<div style=\"font-size:0.8em;margin-top:8px;opacity:0.8;line-height:1.3;\">x performance overhead still impractical for most applica<\/div>\n<\/div>\n<\/div>\n<h2>Trusted Execution Environments: How It Works<\/h2>\n<p>Confidential Computing uses <strong>Trusted Execution Environments (TEEs)<\/strong> \u2013 isolated processor areas where code and data are protected from all other software layers. Even the operating system, hypervisor, and cloud provider have no access to data inside the enclave.<\/p>\n<p><strong>Intel SGX (Software Guard Extensions)<\/strong> isolates individual applications within enclaves. Ideal for specific workloads like key management or multi-party computation.<\/p>\n<p><strong>AMD SEV (Secure Encrypted Virtualization)<\/strong> encrypts an entire VM\u2019s memory using a per-VM key. More application-transparent, as no code changes are required.<\/p>\n<p><strong>ARM CCA (Confidential Compute Architecture)<\/strong> brings similar capabilities to the ARM ecosystem \u2013 relevant for edge computing and mobile workloads.<\/p>\n<h2>Confidential Computing in the Cloud<\/h2>\n<p>All major cloud providers offer Confidential Computing as a managed service: <strong>Azure Confidential VMs<\/strong> (AMD SEV-SNP), <strong>Google Confidential VMs<\/strong> (AMD SEV), and <strong>AWS Nitro Enclaves<\/strong> (proprietary isolation). Using them is often as simple as enabling an option when creating a VM \u2013 no code rewrite needed.<\/p>\n<p>For containerized workloads, <strong>Confidential Containers<\/strong> are emerging: Azure offers Confidential Containers on AKS, Google is developing Confidential GKE. The open-source project Kata Containers implements VM-isolated containers as a universal solution.<\/p>\n<h2>Use Cases: Where Confidential Computing Makes a Difference<\/h2>\n<p><strong>Multi-Party Data Analytics:<\/strong> Companies can jointly analyze data without revealing it to each other. Example: Banks share fraud patterns without exposing customer data. The analysis runs within a TEE\u2014no participant sees the raw data of others.<\/p>\n<p><strong>Regulated Cloud Migration:<\/strong> Government agencies and financial institutions previously unable to use public cloud due to data privacy concerns now have a technical solution: even the cloud provider cannot access the data thanks to Confidential Computing.<\/p>\n<p><strong>AI on Sensitive Data:<\/strong> Machine learning training and inference on medical records, financial transactions, or personally identifiable information\u2014protected from the infrastructure operator.<\/p>\n<h2>Limitations and Outlook<\/h2>\n<p>Confidential Computing is not a silver bullet. <strong>Performance overhead<\/strong> ranges from 2\u201315%, depending on workload and TEE technology\u2014acceptable for most applications, but relevant for latency-sensitive systems. <strong>Attestation<\/strong>\u2014proving that code actually runs in a TEE\u2014requires trust in the hardware manufacturer.<\/p>\n<p>The trend is clear: Confidential Computing will become standard for sensitive cloud workloads within 3\u20135 years. The Confidential Computing Consortium (founded by Intel, Microsoft, Google, AMD) is driving standardization and open-source tooling.<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<details style=\"border-bottom: 1px solid #e0e0e0; padding: 10px 0;\">\n<summary style=\"cursor: pointer; font-size: 15px;\"><strong>What&#8217;s the difference between Confidential Computing and Homomorphic Encryption?<\/strong><\/summary>\n<p style=\"margin: 8px 0 4px 8px; color: #555;\">Homomorphic Encryption allows computations on encrypted data without decryption\u2014ideal in theory, but currently impractical for most workloads due to 1,000\u201310,000x performance overhead. Confidential Computing uses hardware isolation with only 2\u201315% overhead and is production-ready today.<\/p>\n<\/details>\n<details style=\"border-bottom: 1px solid #e0e0e0; padding: 10px 0;\">\n<summary style=\"cursor: pointer; font-size: 15px;\"><strong>Can the cloud provider access my data with Confidential Computing?<\/strong><\/summary>\n<p style=\"margin: 8px 0 4px 8px; color: #555;\">No\u2014that&#8217;s the core advantage. Data is hardware-encrypted, and the key resides within the processor. Neither the hypervisor nor cloud administrators can read the TEE&#8217;s memory. Verifiable via Remote Attestation.<\/p>\n<\/details>\n<details style=\"border-bottom: 1px solid #e0e0e0; padding: 10px 0;\">\n<summary style=\"cursor: pointer; font-size: 15px;\"><strong>Which industries benefit most from Confidential Computing?<\/strong><\/summary>\n<p style=\"margin: 8px 0 4px 8px; color: #555;\">Financial services (regulatory requirements, multi-party analytics), healthcare (patient data in the cloud), public sector (classified data), and any industry with strict data protection demands. Also valuable for multi-cloud scenarios where data is processed across providers.<\/p>\n<\/details>\n<details style=\"border-bottom: 1px solid #e0e0e0; padding: 10px 0;\">\n<summary style=\"cursor: pointer; font-size: 15px;\"><strong>Do you need special hardware for Confidential Computing?<\/strong><\/summary>\n<p style=\"margin: 8px 0 4px 8px; color: #555;\">Not in the cloud\u2014the providers supply the hardware. On-premises, you need processors with TEE support: Intel Xeon from Ice Lake (SGX) or AMD EPYC from Milan (SEV-SNP). Most modern server processors support at least one TEE technology.<\/p>\n<\/details>\n<details style=\"border-bottom: 1px solid #e0e0e0; padding: 10px 0;\">\n<summary style=\"cursor: pointer; font-size: 15px;\"><strong>How do you verify that code is actually running in a TEE?<\/strong><\/summary>\n<p style=\"margin: 8px 0 4px 8px; color: #555;\">Through Remote Attestation: the TEE generates a cryptographically signed report containing hardware identity, firmware version, and the hash of the loaded code. The client verifies this report against the hardware vendor before sending sensitive data.<\/p>\n<\/details>\n<p style=\"text-align: right;\"><em>Header image source: Pexels \/ Markus Winkler<\/em><\/p>\n<h2>Editor&#8217;s Reading Tips<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.cloudmagazin.com\/en\/2026\/04\/05\/lenovo-thinkcentre-m75q-tiny-gen-5\/\">Lenovo ThinkCentre M75q Tiny Gen 5: Enterprise Mini PC with AMD PRO and 5-watt idle for edge and kiosk<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudmagazin.com\/en\/2026\/04\/04\/serverless-ai-overrated-cold-start-gpu-inference\/\">Serverless AI is overrated \u2013 here&#8217;s what really matters<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudmagazin.com\/en\/2026\/04\/04\/qnap-ts-464\/\">QNAP TS-464: 4-bay NAS with Docker, HDMI, and PCIe slot \u2013 what Synology doesn&#8217;t offer in this class<\/a><\/li>\n<\/ul>\n<h2>More from the MBF Media Network<\/h2>\n<p><a href=\"https:\/\/www.securitytoday.de\" target=\"_blank\">SecurityToday<\/a> | <a href=\"https:\/\/mybusinessfuture.com\" target=\"_blank\">MyBusinessFuture<\/a> | <a href=\"https:\/\/www.digital-chiefs.de\" target=\"_blank\">Digital Chiefs<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Confidential computing actively secures data during processing. Learn how TEEs protect your IT infrastructure against eavesdropping.","protected":false},"author":23,"featured_media":27432,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_meta-robots-adv":"","_yoast_wpseo_canonical":"","_yoast_wpseo_opengraph-title":"","_yoast_wpseo_opengraph-description":"","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":0,"_yoast_wpseo_twitter-title":"","_yoast_wpseo_twitter-description":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":0,"pre_headline":"","bildquelle":"","teasertext":"","language":"de","_evm_slot_owner":"","_evm_translation_lang":"","featured_post":0,"featured_post_sortierung":0,"_wp_old_slug":[],"footnotes":""},"categories":[923],"tags":[192,299,416,212],"industry":[],"class_list":["post-37644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-expert-opinions","tag-cloud","tag-cloud-sicherheit","tag-cloud-loesung","tag-datenschutz"],"evm_reading_time_minutes":5,"wpml_language":"en","wpml_translation_of":27433,"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Confidential Computing: Protecting Data During Processing<\/title>\n<meta name=\"description\" content=\"Here&#039;s a possible SEO meta description translation: &quot;3 min read. 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