I have been warned by my browser (Firefox) that someone may be trying to eavesdrop. When logging onto Wells Fargo for example I get a dialog warning me that the certificate may be in question. One was {a248.e.akamai.net} I have tried deleting them from the list in the advanced section of Preferences but they keep coming back. Another is Thawte in California.

This has been happening since I switched to QWEST DSL incidently???