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== Assessment scope == Documentation/source-based deployment assessment of SL1S SPEED with official firmware 1.8.0. Local PrusaLink HTTP Digest is enabled with a generated unique password and the documented authentication-module default policy (5 failures per client address, 300-second evasion). These limits are declared baseline settings, not a measured installation result. Cloud registration, optional SSH access, a VPN and a TLS reverse proxy are not enabled. The local network-control and internal credential-storage paths are in scope; the printer is not physically tested. == Method and evidence boundaries == This is a documentary case-study assessment of the exact hardware, firmware and explicitly stated configuration, reviewed on 24 October 2026. No physical installation, penetration test or traffic capture by the author is claimed. Historical flaws do not establish current unpatched exposure. The website supplies qualitative categories rather than statistical thresholds: repeated real maintenance supports Updatability 1; isolated/uncertain maintenance supports2; a documented no-update condition supports3. Vulnerability/attack frequency labels are reasoned judgments, and a laboratory demonstration is not an observed campaign. None for prior attacks means no exact-model field campaign established in the reviewed sources, not proof of lifetime absence. Communications follows the least-protected enabled path carrying control, credentials or application payloads; a DNS/discovery packet alone is not used to label an entire device unencrypted. Storage evaluates confidential device-resident flash contents, not merely cloud security or whether executable firmware is readable. For Passwords, the methodology discusses first-setup credentials and expressly allows unique initial passwords. Where mandatory first-use creation or explicitly configured unique credentials do not match a shared-default-change label literally, option2 is a disclosed functional mapping, not a claim of forced periodic rotation. Option1 additionally requires enforced complexity; option3 requires positive evidence of common, predictable or unprotected access. Dates preserve the identified manufacturer announcement/availability or clearly identified primary regional catalog basis. No arbitrary first-of-month date is inserted. The calculated IDRS device grade is not a manufacturer certification or a student assignment mark. Calculated IDRS: 2 + 3 + 2 = 7 (C). Date basis: Josef Prusa’s official 16 June 2021 product announcement. The same article separately schedules shipping for late June/early July; this field records the announcement date, not an invented first-shipment day. Date source: https://blog.prusa3d.com/introducing-sl1s_fastest_desktop_sla_3d_printer_51436/ Patch/support context: Firmware 1.8.0 removed the older API-key authentication mode and retained HTTP Digest. The general help article still describes that older option, so the pinned release notes take precedence for this baseline. The credential file continues to be named api.key in the source; its plaintext storage is not confused with the removed network mode. No 2026 physical retest is claimed. Product-specific boundaries: Hardware/model are SL1S SPEED; the cited firmware repository and release explicitly support both SL1 and SL1S. Documented default module thresholds are explicit deployment conditions; they were not measured on the student’s printer. The stored-password conclusion comes from exact-version generator and eMMC-mount source, not from assuming every ext4 file is necessarily unencrypted. Optional SSH/cloud/VPN/proxy services are outside this declared local deployment; the grade is not a manufacturer certificate. No exact-model field campaign was established in the reviewed sources; frequency categories remain qualitative judgments. == Hardware and general-information supplement == Supplement reviewed on 25 October 2026. Manufacturer model specifications and explicitly identified historical manuals support the added fields. Hardware capabilities do not imply that optional services, accessories or every capacity variant are enabled in the assessed case. Unpublished or unverified parameters are identified rather than guessed. Current sale/support status is separate from the original historical firmware/configuration assessment; the twelve security selections and original evidence have not been changed. === Specification evidence === * Generation: [https://help.prusa3d.com/article/original-prusa-sl1-vs-sl1s-speed_233097 source 1]; [https://blog.prusa3d.com/introducing-sl1s_fastest_desktop_sla_3d_printer_51436/ source 2]. * Status, Dimensions, GPU, Memory, Camera: [https://www.prusa3d.com/product/original-prusa-sl1s-speed-3d-printer/ source 1]. * Mass, Storage, Sound: [https://sites.tuni.fi/app/uploads/2022/03/598ede63-prusa-sl1s-speed-manual.pdf source 1]. * Operating system: [https://github.com/prusa3d/Prusa-Firmware-SL1/releases/tag/1.8.0 source 1]. * Companion App: [https://help.prusa3d.com/article/prusalink-sl1-sl1s_146094 source 1]; [https://github.com/prusa3d/Prusa-Firmware-SL1/releases/tag/1.8.0 source 2]. * CPU: [https://www.prusa3d.com/product/a64-board-1-5-sl1s/ source 1]. * Battery, Charging: [https://sites.tuni.fi/app/uploads/2022/03/598ede63-prusa-sl1s-speed-manual.pdf source 1]; [https://www.prusa3d.com/product/external-psu-24v-150w/ source 2]. * Power: [https://www.prusa3d.com/product/original-prusa-sl1s-speed-3d-printer/ source 1]; [https://www.prusa3d.com/product/external-psu-24v-150w/ source 2]. * Display: [https://sites.tuni.fi/app/uploads/2022/03/598ede63-prusa-sl1s-speed-manual.pdf source 1]; [https://www.prusa3d.com/product/original-prusa-sl1s-speed-3d-printer/ source 2]. * Connectivity: [https://www.prusa3d.com/product/original-prusa-sl1s-speed-3d-printer/ source 1]; [https://sites.tuni.fi/app/uploads/2022/03/598ede63-prusa-sl1s-speed-manual.pdf source 2]. === Specification qualifications === * The 5.96-inch exposure LCD is separate from the front control touchscreen. * Net and gross weight are taken from the original SL1S SPEED manufacturer handbook; its university-hosted copy is identified as a mirror. * Unpublished RAM and flash-capacity figures are not inferred from related printer models.
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