Olesia Klevchuk

California

Product Marketing Director at Barracuda Networks

Contributor at Freelance

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Articles

Email scams: A year-round challenge for businesses of all sizes

2 weeks ago | smartermsp.com | Olesia Klevchuk

In today’s rapidly changing digital landscape, businesses and consumers face a constant stream of cyberthreats – not just during peak periods like tax season, back-to-school, and holiday shopping, but all year. In fact, according to Barracuda’s 2025 Email Threats Report, 24% of email messages overall are now malicious or unwanted spam. Common threats affecting businesses have evolved beyond phishing and now include vishing, QR code phishing (quishing), and phishing-as-a-service (PhaaS).
Stronger and smarter account takeover detection: Reduce risk and response time

3 weeks ago | blog.barracuda.com | Olesia Klevchuk

Account takeover (ATO) attacks remain one of the most damaging and hard-to-detect threats. Once a malicious actor gains control of a legitimate user’s account, they can launch phishing campaigns, move laterally within an organization or exfiltrate sensitive data. All of this while appearing completely trustworthy to both the user and security systems.
New next-generation threat detection capabilities in Barracuda Advanced Threat Protection and LinkProtect

1 month ago | blog.barracuda.com | Olesia Klevchuk

We are excited to announce a major leap forward in Barracuda threat protection capabilities with the integration of multimodal AI technology into our purpose-built sandbox engine. This enhancement allows Barracuda Advanced Threat Protection (ATP) and Barracuda LinkProtect to perform real-time, deep inspection of URLs and file artifacts, including documents, images, embedded links, and QR codes.
Email security under siege: How MSPs can win the war against phishing

1 month ago | smartermsp.com | Olesia Klevchuk

Phishing attacks are no longer the clumsy attempts of the past. They’re evolving at an alarming rate, forcing managed service providers (MSPs) to radically adapt their email security strategies to protect their customers effectively. Automated phishing tools, the weaponization of artificial intelligence (AI), and meticulously researched and targeted attacks have dramatically increased these attacks’ effectiveness (and efficiency).
Email security under siege: How MSPs can win the war against phishing

2 months ago | managedservicesjournal.com | Olesia Klevchuk

Phishing attacks are no longer the clumsy attempts of the past. They’re evolving at an alarming rate, forcing MSPs to radically adapt their strategies to protect their customers’ email more effectively. Automated phishing tools, the weaponization of artificial intelligence (AI), and meticulously researched and targeted attacks have dramatically increased these attacks’ effectiveness (and efficiency). This surge in sophistication has raised the bar on what constitutes robust email security measures.
Phishing in 2025: Are your clients’ defenses ready for the next wave?

Mar 17, 2025 | blog.barracuda.com | Olesia Klevchuk

Phishing attacks remain one of the most pervasive and damaging cybersecurity threats. By tricking individuals into revealing sensitive information, such as email credentials, these attacks not only result in direct financial loss but also pave the way for more sophisticated cybercrimes. In 2023 alone, the U.S. Internet Crime Complaint Center (IC3) received 880,418 complaints from the American public, with potential losses exceeding $12.5 billion.
Four essential components of modern email security

Feb 26, 2025 | channelbuzz.ca | Olesia Klevchuk

Email remains the primary gateway for cybersecurity attacks. Cybercriminals constantly evolve, using sophisticated technology to launch phishing attacks, business email compromise (BEC), and other schemes designed to deceive employees and bypass traditional security measures. The FBI’s Internet Crime Complaint Center (IC3) reported that BEC scams in 2023 led to adjusted losses exceeding $2.9 billion, up from $2.7 billion in 2022.
The Importance of flexible deployment in email security solutions

Feb 17, 2025 | smartermsp.com | Olesia Klevchuk

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 losses from invoice scams or other fraud schemes. A fast-moving and agile company requires a comprehensive and flexible security solution.
Why DMARC is essential for email security

Feb 11, 2025 | smartermsp.com | Olesia Klevchuk

As advanced security solutions make it more challenging for traditional malware and other attacks to succeed, cybercriminals are increasingly turning to domainspoofing and artificial intelligence (AI) to create more sophisticated and convincing phishing attacks.
The Importance of flexible deployment in email security solutions

Feb 6, 2025 | blog.barracuda.com | Olesia Klevchuk

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 is on top of anything lost to invoice scams or other fraud schemes. A fast-moving and agile company requires a comprehensive and flexible security solution.