The National Information Technology Board (NITB) has urged the public to upgrade to the latest version of their web browsers as critical vulnerabilities found in them could lead to phishing attacks.

In its ninth alert, NITB said that critical vulnerabilities have been found in various browsers namely: Mozilla Firefox, Firefox ESR, & Mozilla Thunderbird. The vulnerabilities allow the attacker to execute malicious code in users' browsers, enabling website cloning for phishing attacks on services, NITB said.

The board has urged the public to upgrade the latest versions of these products for security purposes.

NITB has been quite recently urging the users to remain vigilant against phishing emails. “Phishing emails carrying malicious doc file named as Protocol.doc is being spread for info-stealing. It gathers the user's browsers, emails, & FTP client's information & sends it to the attacker's servers,” alerted NITB.

NITB also alerted against phishing Emails attached with malicious attachments containing PDF's & Links with the capability to steal passwords via User's Browsers, Email & FTP Clients to Hackers servers. NITB has urged the public not to download any email links or Pdf files from unknown sources.