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Dealing with Spams and Scams: an ISP’s Perspective

Dealing with Spams and Scams: an ISP’s Perspective. Mr. Sunday A. Folayan Managing Director, SKANNET – Ibadan. Secretary, ISPs Association of Nigeria (ISPAN). Goal and Objective. To highlight the difference between spam and scam mails - Pests confronting ISPs

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Dealing with Spams and Scams: an ISP’s Perspective

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  1. Dealing with Spams and Scams: an ISP’s Perspective Mr. Sunday A. Folayan Managing Director, SKANNET – Ibadan. Secretary, ISPs Association of Nigeria (ISPAN) (c) Sunday A. Folayan, ISPAN 2002

  2. Goal and Objective • To highlight the difference between spam and scam mails - Pests confronting ISPs • show that the Nation and ISPs are under siege • To give an insight into how ISPs fight the two pests. • Assist in formulating policies to check the scourge of scam mails (c) Sunday A. Folayan, ISPAN 2002

  3. The Pests • Unsolicited Commercial Email (UCE) UCE is spam most of the time, coming from the Internet to ISP’s customers • Nigerian Scam Mail (NSM) NSM (419) is scam all of the time, originating from ISP’s customers to the Internet (c) Sunday A. Folayan, ISPAN 2002

  4. How Severe? (c) Sunday A. Folayan, ISPAN 2002

  5. Transmission means • Simple Mail Transfer Protocol (SMTP) • Hyper-Text Transfer Protocol (HTTP) • Secure Hyper-Text Transfer Protocol (HTTPS) (c) Sunday A. Folayan, ISPAN 2002

  6. SMTP SMTP Internet Spammer National ISP SMTP relay via ISP. Mail can be scanned (c) Sunday A. Folayan, ISPAN 2002

  7. SMTP Internet Spammer National ISP SMTP ISP bypassed. Port can be blocked (c) Sunday A. Folayan, ISPAN 2002

  8. HTTPS Internet Spammer National ISP HTTPS relay bypasses the ISP’s scanner (c) Sunday A. Folayan, ISPAN 2002

  9. How ISPs fight spam • Customers are educated to avoid sites that request for mandatory registration in exchange for free services. These sites only harvest addresses, to re-sell to spammers • ISPs filter the addresses (IP and domains) of well-known spammers • ISPs install mail scanners, that can identify well know spams and filter them before delivery to clients mailboxes (c) Sunday A. Folayan, ISPAN 2002

  10. Nigerian ISPs are being hit worldwide for scam mails! • Very many ISPs have suffered unnecessary downtimes, because their upstream disconnected them for reported Nigerian Scam Mails (NSM). • IP addresses allocated to Nigerian ISPs are sometimes blacklisted on some websites (c) Sunday A. Folayan, ISPAN 2002

  11. How ISPs fight scam • Scammers like to be anonymous. ISPs request for registration details • Dialup Accounts must have a contact phone line • Telephone numbers are dialed to confirm they are serviceable and functional before accounts are setup • Fraudulent Accounts (Dial-up or Wireless) are disconnected immediately • SMTP borne mails are scanned and sometimes filtered, based on ISPs Acceptable use policy • ISPs share information • ISPs report to the police (c) Sunday A. Folayan, ISPAN 2002

  12. Recommendation • This is crime! Law enforcement agents need Training!! • Review the legislation to enhance speedy trial • Stiff penalties for those caught • A uniform national ID scheme is desirable • Need to Create more jobs for Nigerians (c) Sunday A. Folayan, ISPAN 2002

  13. Thank You! (c) Sunday A. Folayan, ISPAN 2002

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