Implement multifactor authentication - is a solution that can work internally in the org and externally for the customers.

Group Policy Objects (GPO) are a feature in Windows environments that allow administrators to control settings and permissions across user accounts and computers within an organization.
GPOs can restrict user permissions to prevent unauthorized installation or modification of applications, making them the best choice for centrally managing user capabilities on Windows systems.

The analyst should look at p4wnp1_aloa.lan (192.168.86.56) first, as this is the most suspicious device on the network. P4wnP1 ALOA is a tool that can be used to create a malicious USB device that can perform various attacks, such as keystroke injection, network sniffing, man-in-the- middle, or backdoor creation. The presence of a device with this name on the network could indicate that an attacker has plugged in a malicious USB device to a system and gained access to the network.

Evidence capture prioritizes collection activities based on the order of volatility, initially focusing on highly volatile storage. The ISOC best practice guide to evidence collection and archiving, published as tools.ietf.org/html/rfc3227, sets out the general order as follows:
CPU registers and cache memory (including cache on disk controllers, GPUs, and so on) Contents of system memory (RAM), including the following:
Routing table, ARP cache, process table, kernel statistics
Temporary file systems/swap space/virtual memory
Data on persistent mass storage devices (HDDs, SSDs, and flash memory devices) - including file system and free space Remote logging and monitoring data Physical configuration and network topology Archival media

The best action that the SOC manager can recommend to help ensure new employees are accountable for following the company policy is to require all new employees to sign a user agreement to acknowledge the company security policy. A user agreement is a document that defines the rights and responsibilities of the users regarding the use of the company's systems, networks, or resources, as well as the consequences of violating the company's security policy.
Signing a user agreement can help ensure new employees are aware of and agree to comply with the company security policy, as well as hold them accountable for any breaches or incidents caused by their actions or inactions.