communication protocols Archives

Winsage

June 12, 2025

Microsoft Patched Windows Server 2025 Restart Bug that Disconnects AD Domain Controller

Microsoft has released a patch, KB5060842, on June 10, 2025, to address a vulnerability in Windows Server 2025 that affected Active Directory Domain Controllers' ability to manage network traffic after system restarts. This issue stemmed from the improper initialization of domain firewall profiles during startup, leading to service interruptions and authentication failures. The patch corrects the initialization sequence of these profiles, ensuring proper network traffic management post-restart. Organizations using Windows Server 2025 are advised to implement this update to maintain the reliability of their Active Directory services.

Tech Optimizer

May 20, 2025

Running I/O intensive workloads on PostgreSQL with Amazon EBS io2 Block Express

Databases are essential for organizations, and their performance is critical to user experience and operational efficiency. AWS introduced Amazon Elastic Block Store (Amazon EBS) io2 Block Express in December 2020 to address performance issues related to storage latency during database operations. This solution enhances storage management for high-performance database servers, supporting up to 256,000 IOPS and 4,000 MiB/s throughput per volume, with a maximum volume size of 64 TiB and sub-millisecond disk I/O latency. A performance comparison was conducted between PostgreSQL databases on Amazon EBS gp3 and io2 Block Express, utilizing the HammerDB benchmarking tool. The analysis involved four tests: OLTP Load test, OLTP Stress test, OLAP Load test, and OLAP Stress test, using r5b.24xlarge EC2 instances. Results indicated that io2 Block Express outperformed gp3 by 2.08 times in transactions per minute (TPM) and provided significantly lower latency for both OLTP and OLAP workloads. Key differences between gp3 and io2 Block Express include durability, with io2 offering 99.999% durability compared to gp3's 99.8% – 99.9%. The maximum IOPS for gp3 is 16,000, while io2 supports up to 64,000 IOPS. Pricing for gp3 is approximately ,375.36/month, while io2 Block Express costs around ,408/month, reflecting its premium performance capabilities. In benchmarking tests, io2 Block Express demonstrated superior performance, achieving 3.95 times faster average performance than gp3 across all scenarios. It is particularly suitable for mission-critical applications requiring consistent sub-millisecond latency and high durability.

AppWizard

May 3, 2025

Photo appears to shows Mike Waltz using Signal-like app that can archive messages

White House Deputy Press Secretary Anna Kelly confirmed that the encrypted messaging application Signal is officially sanctioned for government use and installed on government-issued devices. The National Security Council has not commented on the related app, TeleMessage, which is derived from Signal and designed to help government entities comply with records retention laws. TeleMessage was founded in 1999, acquired by Smarsh in 2024, and has been involved in government contracts, including a .1 million contract with the Department of Homeland Security and FEMA that began in February 2023 and will conclude in August 2025. Tom Padgett, Smarsh’s president for enterprise business, stated that like Signal, messages sent through TeleMessage are encrypted, but the app does not address security issues raised by a recent incident involving Signal. The specifics of how government officials utilize TeleMessage remain unclear, and five cybersecurity experts admitted they were unfamiliar with the app prior to recent developments. TeleMessage licenses parts of its technology, including its encryption protocol, to other companies, but Signal clarified there is no formal agreement with TeleMessage and expressed concerns about the privacy and security of unofficial versions of their app.

AppWizard

April 12, 2025

Signal App reveals need for more secure channels

Mike Waltz, national security adviser under President Trump, accidentally included Jeffrey Goldberg, editor-in-chief of The Atlantic, in a confidential military chat on Signal that involved senior officials discussing imminent U.S. military strikes on Yemen. This incident raised concerns about the administration's secure communication practices, particularly as it involved sensitive military strategies. Despite Signal's encryption, critics argue that public group chats should not be used for classified discussions, highlighting vulnerabilities in communication protocols. Secure rooms are designed for classified discussions with strict protocols, which were not followed in this case.

AppWizard

March 25, 2025

Why does this administration use the Signal messaging app to discuss war plans?

Jeffrey Goldberg, editor-in-chief of The Atlantic, was inadvertently included in a Signal group chat involving senior U.S. government officials discussing military action against Houthi targets in Yemen. This incident raised questions about national security communication protocols, particularly regarding the use of the Signal app for sensitive discussions that should occur on secure government devices. A Pentagon advisory warned against using Signal due to vulnerabilities that could be exploited by foreign hacking groups. Concerns were voiced by figures like Senator Elizabeth Warren about the legality and safety of using such apps for national security matters.

AppWizard

March 25, 2025

What is Signal? The app where US officials accidentally shared war plans with a journalist

A group chat among top US officials on the secure messaging app Signal inadvertently included a journalist, raising concerns about the app's security and the protocols for its use by government officials. Signal is known for its end-to-end encryption, ensuring that only participants can access conversations, and it cannot comply with law enforcement requests for user data. During the Biden administration, officials were allowed to use Signal under strict instructions not to share classified information. The incident involving Trump administration officials, who mistakenly added a journalist to a chat about military operations, is being reviewed by the National Security Council.

AppWizard

November 15, 2024

NatWest blocks staff from using WhatsApp and Facebook Messenger

NatWest Group has banned messaging platforms such as WhatsApp, Facebook Messenger, and Skype on its UK devices to enhance communication protocols and ensure that internal communications among staff use approved channels. This policy change aims to improve record-keeping and compliance with regulations, following scrutiny in the banking sector regarding the management of communications. The ban took effect earlier this month, emphasizing the importance of structured communication practices.

AppWizard

November 14, 2024

WhatsApp, Facebook Messenger, and Skype banned by NatWest for staff communication; here’s why

NatWest Group has banned the use of messaging platforms such as WhatsApp, Facebook Messenger, and Skype on all company devices in the UK as part of a strategy to ensure employees communicate solely through approved channels for official business. This decision aims to enhance compliance and accountability by curbing off-channel communications, which pose challenges to regulatory compliance and record-keeping. The policy, effective earlier this month, is intended to facilitate better oversight and maintain accurate records during internal investigations or audits. The financial sector is facing increasing scrutiny over communication practices, with regulatory bodies emphasizing the need for robust communication protocols to uphold transparency and accountability.