Get the inside scoop with LoginTC and learn about relevant security news and insights.
Chief Technology Officer (CTO) | Cyphercor
Thomas Sydorowski is the Chief Technology Officer at Cyphercor, the company behind LoginTC. He has been with the company since 2012, building LoginTC’s multi-factor authentication across RADIUS, LDAP, Windows Logon, Outlook Web Access, AD FS, and Microsoft Entra ID, among many other integrations. He writes in-depth technical documentation and implementation guidance for deploying MFA in real production environments.
Windows Logon Connector 2.0.0: Air-Gapped Ready, Upgrades in Place
September 24, 2026 •
Windows Logon Connector 2.0.0, released 29 July 2026, is a ground-up rebuild of the LoginTC Windows Logon and RDP Connector. It runs natively in air-gapped environments, needs no manual registry edits and no firewall exception for certificate revocation checks, and upgrades in place over an existing installation without clearing your users’ offline enrolment. Key takeaways […]
LoginTC Managed 2.1.14: Certificates, HOTP, German Language and More
August 28, 2026 •
LoginTC Managed 2.1.14 rebuilds certificate and private key handling so administrators can paste or upload whichever format they already have, including PKCS #12, PKCS #7, DER and encrypted keys, with elliptic curve support alongside RSA. The release also adds HOTP 6-digit hardware tokens, German language support, bulk passcode grid actions, a searchable log filter, and […]
LoginTC Managed 2.1.13: Admin Lockout, Danish Language, and More for Account Admins
July 30, 2026 •
LoginTC Managed 2.1.13 introduces Login Controls, which lock administrator accounts in the LoginTC Admin Panel after a configurable number of failed login attempts. This blocks brute-force attacks against administrator credentials. The release also adds Danish language support for user-facing prompts, improves audit logging around invalid logins, and includes several quality-of-life fixes for account admins. Existing […]
July 02, 2026 •
HOTP (HMAC-Based One-Time Password) is an authentication method defined by RFC 4226 that generates one-time passwords using a shared secret key and an incrementing counter. Unlike TOTP, which uses time-based intervals, HOTP advances each time a token is used. HOTP is widely deployed in hardware tokens used by financial services, government, healthcare, and air-gapped environments. […]
RadSec Support (RADIUS over TLS) in LoginTC MFA
October 23, 2025 •
Last year, a significant vulnerability known as Blast-RADIUS exposed a critical flaw in the RADIUS authentication protocol that many organizations still rely on to connect their VPNs, firewalls, and network devices. The issue highlighted the inherent weaknesses in traditional RADIUS traffic, which, by default, does not encrypt all communications. At LoginTC, our immediate response to […]
CA Certificates trust anchor management in the latest LoginTC RADIUS Connector
August 11, 2025 •
The latest LoginTC RADIUS Connector update introduces more flexibility in managing the CA certificate trust anchors used in protocols that use TLS for secure communications. This follows up on enhancements to the IP address blocking and support snapshot features in our previous update. Keep reading to learn all about the latest update. Prefer to watch […]
How to add Windows MFA for ARM processors
March 05, 2025 •
LoginTC’s latest update to the LoginTC Windows Logon and RDP Connector allows you to protect your Windows device with MFA if it uses an ARM 64-bit processor. This innovation into MFA for Windows technology enables usage of comprehensive MFA for a wider range of users and machines. Keep reading to learn more about Windows MFA […]
Blast-RADIUS Vulnerability: How to protect your organization
July 10, 2024 •
What is the Blast-RADIUS Vulnerability? The Blast-RADIUS vulnerability was published by researchers on July 9, 2024, and it affects the RADIUS protocol, which is commonly used for authentication, authorization, and accounting (AAA) in enterprise and telecommunication networks. By exploiting flaws in the RADIUS protocol, a Man-in-the-Middle (MITM) attacker can trivially forge RADIUS requests and responses […]
External authentication methods in Microsoft Entra ID
May 14, 2024 •
Last reviewed: September 2026 Microsoft has announced that external authentication providers will now be able to integrate natively into the Microsoft Entra ID platform. Microsoft has invited LoginTC to be an external authentication provider with Entra ID. Read on to learn more about what this means for your organization, and your MFA choices in a […]
April 03, 2024 •
In light of the public disclosure of the compromised xz library packages (CVE-2024-3094), our security team has performed a thorough review of the xz library packages in all LoginTC appliances to determine the CVE-2024-3094 impact on our services. Does CVE-2024-3094 impact LoginTC? No, CVE-2024-3094 does not impact LoginTC Cloud services. Are the LoginTC appliances affected? […]
What is the LoginTC RADIUS Connector 4.0.0?
June 27, 2023 •
Starting in July of 2023, LoginTC will be rolling out our brand new LoginTC RADIUS Connector to all existing and new clients — the LoginTC RADIUS Connector 4.0.0. If you’re an existing customer of LoginTC, you can upgrade to the new connector by following our step-by-step upgrade guide. Keep reading to learn more about what […]
Learn how our new MSP Hub will save you time
April 14, 2023 •
As cybersecurity becomes top priority for a growing number of small and medium sized (SMBs) businesses, the need for outsourced IT has steadily increased. Managed Service Providers (MSPs) and Managed Security Service Providers (MSSPs) are being asked to meet the rising demand for cybersecurity improvements, including MFA. That’s why the MSP Hub is an essential […]
Cyphercor Achieves ISO 27001 Certification!
April 05, 2023 •
Cyphercor, the company behind LoginTC, is excited to announce that we have received ISO 27001 certification! This achievement represents the culmination of months of work and is a testament to our commitment to information security. As an authentication solution provider, we’re dedicated to providing our customers with the highest level of protection for their sensitive […]
More versatile authentication and administration with LoginTC’s latest product update
February 28, 2023 •
In our last major product update, we introduced new features to improve authentication security and administrator insights into your LoginTC accounts. Today we’re announcing our latest update to LoginTC that will enhance flexibility and add more versatile authentication solutions. This update introduces a brand new authentication method, and more options for end-user enrollment. Let’s dive […]
Introducing LoginTC product updates to improve authentication security and administrator processes
December 20, 2022 •
It’s been another fantastic year here at LoginTC! From the launch of our on-premises MFA solution, LoginTC Managed, to the release of our unique cyber insurance-specific offering, our product and development teams have been hard at work ensuring LoginTC is ready for modern cybersecurity demands. That’s why we’re excited to close out the year with […]
December 14, 2021 •
In light of the public disclosure of the Log4j vulnerability (CVE-2021-44228), our security team has performed a thorough review of the use of logging libraries in LoginTC products.
August 09, 2013 •
Learn how to use the LoginTC REST API to create LoginTC authentication requests and to programmatically manage your LoginTC account.
Performance Analysis of Mobile Push Notification Networks
February 08, 2013 •
A discussion on the importance of mobile push notification networks to LoginTC and how we test and monitor the networks for performance.