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.

Quishing: What you need to know about QR code email attacks

Quishing: What you need to know about QR code email attacks

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...

/ October 10, 2023
novel phishing attacks
Threat Spotlight: 3 novel phishing tactics

Threat Spotlight: 3 novel phishing tactics

As cybercriminals work to make phishing attacks more effective, they are continually introducing new techniques and tactics to try to trick victims, bypass security, and avoid detection.

/ March 17, 2023
How hackers use phishing in ransomware attacks

How hackers use phishing in ransomware attacks

Phishing attacks work because people like to click on things. Hackers carefully tailor attacks to their victims by collecting publicly available personal information about them and playing to their sense of urgency to get a response. The attackers only need...

/ October 12, 2021 / 1 Comment
Coronavirus fraud: companies face new phishing attacks

Coronavirus fraud: companies face new phishing attacks

As Coronavirus COVID-19 makes its way across the world, individuals are doing their best to stay up-to-date on the latest outbreak locations and confirmed cases. Hackers have created new attacks based on the public interest in this virus.

/ March 17, 2020