Olesia Klevchuk

All posts by Olesia Klevchuk

Olesia Klevchuk is a Senior Product Marketing Manager for email security at Barracuda Networks. In her role, she focuses on defining how organizations can protect themselves against advanced email threats, spear phishing and account takeover. Prior to Barracuda, Olesia worked in email security, brand protection, and IT research.

The importance of flexible deployment in email security solutions

The importance of flexible deployment in email security solutions

Companies are facing an increasing array of sophisticated threats, particularly through business email channels. These threats can disrupt operations, expose sensitive data, and cost the companies millions of dollars in recovery costs, compliance penalties, and lawsuit settlements. This adds to any...

/ February 17, 2025
DMARC
Why DMARC is essential for email security

Why DMARC is essential for email security

As advanced security solutions make it more challenging for traditional malware and other attacks to succeed, cybercriminals are increasingly turning to domain spoofing and artificial intelligence (AI) to create more sophisticated and convincing phishing attacks. Recently, the North Korean cybercrime...

/ February 11, 2025
Automated incident response – efficiency at scale

Automated incident response – efficiency at scale

No matter how robust your email security measures are, some threats will inevitably bypass initial defenses. Whether it’s a sophisticated phishing attack or an emerging malware variant, the ability to swiftly detect and respond to post-delivery threats is critical for...

/ January 16, 2025
email security
AI-powered email security: How AI enhances integrated cloud email security

AI-powered email security: How AI enhances integrated cloud email security

Barracuda recently launched new email protection plans that enable customers to fully defend their email environments with security tailored to their specific needs. Our first post in this series defined and explained the components necessary to defend against modern threats. In this post,...

/ January 8, 2025
holiday email scams
’Tis the season to avoid holiday email scams

’Tis the season to avoid holiday email scams

Beware of common holiday email scams. As the holidays approach, businesses are busier than ever, and cybercriminals know it. Along with cheer, joy, and giving, the holidays also bring an unfortunate surge in cyber scams. As businesses tackle everything from...

/ December 9, 2024 / 1 Comment
email security
Essential components for cloud email security

Essential components for cloud email security

Attacks are getting more sophisticated, and organizations need a fresh approach. The email threat landscape is evolving fast. From sophisticated phishing attacks to business email compromise (BEC) attacks, bad actors continually find new ways to outsmart existing defenses. For businesses...

/ December 3, 2024
AI BEC
The rise of AI-based BEC attacks

The rise of AI-based BEC attacks

Cybercriminals are quickly latching on to new technology and strategies to improve the success rates of their social engineering-based email attacks. In the latest Barracuda Email Threats and Trends report, the company found that although traditional email scams like phishing are...

/ November 14, 2024
Threat Spotlight: How company size affects the email threats targeting your business

Threat Spotlight: How company size affects the email threats targeting your business

It takes less than a minute for someone to fall for a phishing scam. According to the 2024 Data Breach Investigations Report, the median time for a recipient to click on a malicious link after opening the email is 21 seconds, followed by...

/ July 30, 2024
QR code phishing: What MSPs need to know to protect their customers

QR code phishing: What MSPs need to know to protect their customers

In today’s digital age, the use of technology continuously evolves to make our personal and professional lives more convenient. Quick Response (QR) code has been one such advancement. This two-dimensional barcode allows users to share website URLs and contact information...

/ April 12, 2024
AI
Five ways cybercriminals use AI to wreak havoc

Five ways cybercriminals use AI to wreak havoc

It seems that each time there is a new technology advancement, criminals quickly cut to the front of the line when it comes to dreaming up new applications. That is the case with generative artificial intelligence (AI), which has been...

/ February 29, 2024