1-лек аппарат 2026

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Lecture 1.
Introduction to Hardware Security:
Core concepts, threats, vulnerabilities, and the role of technical
support in information security.

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Hardware Security is an information security discipline that protects the
physical components of an IT infrastructure, protects the secrets stored in
them (keys, firmware), and creates a hardware Root of Trust for the entire technology
stack.
For a long time, hardware was considered an absolutely trusted zone running program code, but
modern attacks have proven that vulnerabilities at the physical level can completely compromise the
most secure operating system or application
Безопасность аппаратного обеспечения (Hardware Security) — это дисциплина информационной безопасности, которая занимается
защитой физических компонентов ИТ-инфраструктуры, защитой хранящихся в них секретов (ключей, прошивок) и созданием
аппаратного корня доверия (Root of Trust) для всего стека технологий. Долгое время железо считалось абсолютно доверенной зоной,
выполняющей программный код, однако современные атаки доказали, что уязвимости на физическом уровне могут полностью
скомпрометировать самую защищенную операционную систему или приложение.

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1. Basic Concepts
Hardware security is based on the creation of physical barriers and immutable mathematical primitives that
software cannot bypass:
Hardware Root of Trust: A physical module (for example, a TPM chip, an HSM, or an embedded cryptographic
processor) containing immutable encryption keys used to verify the authenticity of the system.
Secure Boot: A process in which each stage of device boot (from the first processor instruction to OS startup) is
verified using digital signatures stored in the hardware. This ensures that the firmware has not been modified
by an attacker.

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Hardware Isolation: Separation of memory and computing environments at the hardware level (for
example, ARM TrustZone or Intel SGX technologies). Even if a hacker gets root rights in the main OS, he
will not be able to access the isolated "safe zone".
Physically Unclonifiable Functions (PUFs): "Digital fingerprints" of microchips resulting from microscopic
unique manufacturing defects. PUFs allow you to generate unique encryption keys for each specific chip
without having to store them in permanent memory.

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2. Threats and vulnerabilities of the hardware.
Hardware vulnerabilities are dangerous because they cannot be fixed with a regular software update (patch) — often a
complete replacement of components is required.
Key Vulnerabilities
Processor architecture vulnerabilities: Chip logic design errors (Meltdown and Spectre are vivid examples), which allow
reading data from the protected memory of other programs or the OS kernel through the mechanisms of speculative
execution of processor commands.
Unsecured debugging ports: Physical interfaces on the boards (such as JTAG) that engineers use for testing. If they are
not blocked in the commercial version of the device, an attacker can connect to them directly and read all the firmware
or keys.
Supply Chain Vulnerabilities: Chip manufacturing and board assembly are often distributed worldwide. Undocumented
changes may be made to the device during production or transportation.

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The main types of attacks and threats.
Hardware Trojans: Intentional malicious modification of a chip's circuit at the stage of its design or fabrication.
Such a "Trojan" can remain silent for years, but activate under a rare combination of conditions (trigger) and
disable protection or transfer data (payload).
Side-Channel Attacks: The hacker does not break the cipher mathematically, but measures the physical
parameters of the device during calculations: fluctuations in energy consumption, electromagnetic radiation, or
operation time. Secret keys are restored based on this data.
Fault Injection attacks: Physical impact on the chip (with a laser, voltage change, or strong heating) at the time of
password or key verification in order to force the processor to make a mistake and skip the authorization step.
Component Counterfeiting: The use of cloned, used, or relabeled chips under the guise of new ones, which
reduces the reliability of IT systems.

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3. The role of technical support in ensuring hardware security.
Although technical support engineers (Helpdesk, Sysadmins, L1/L2/L3 support) do not design microchips,
they are the first line of defense and the operational core of hardware protection in organizations.
Their functions are divided into three critical zones:

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1. Lifecycle and configuration management (Proactive protection).
Supply chain control during acceptance: Technical support conducts an initial audit and verification of
incoming equipment (reconciliation of serial numbers, verification of the integrity of warranty seals,
vendor evaluation).
Timely Microcode Update (Firmware/BIOS): Since critical processor vulnerabilities (like Spectre) are
covered by microcode or BIOS patches, technical support is responsible for the regular and secure
deployment of updates to the fleet of servers and workstations.
Minimizing the attack surface: Disabling unused physical ports on servers and switches (USB, JTAG),
disabling outdated protocols, and basic secure boot configuration (Secure Boot, BIOS passwords).

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2. Physical perimeter control and compliance.
Hardware access control: Technical support engineers control physical access to server areas, monitor
the installation of locks on server racks and the use of hardware authentication keys.
Safe disposal (Decommissioning): When decommissioning equipment, technical support is obliged not
only to delete files, but to ensure the destruction of data at the hardware level (demagnetization of
hard drives, destruction of memory chips, or launching Secure Erase procedures on SSDs) in order to
prevent leakage through discarded hardware

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3. Monitoring and Incident Response.
Anomaly registration: Technical support is the first to notice strange hardware behavior (sudden
temperature spikes without load, unreasonable reboots, memory errors), which may indicate attempts at
physical hacking or attacks such as Fault Injection.
Isolation of compromised devices: When physical interference is detected (for example, the detection of
a third-party Keylogger USB dongle on an employee's computer), technical support instantly isolates the
device from the corporate network to prevent further damage.

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Thanks for your attention!