The two major forms of phishing is that of emails and fake websites.
These days they send it via text messages. Some hoodlums who work with communication companies and have access to lots of phone numbers send bulk SMS containing phishing links to subscribers most times they send attachments through the text from an unknown sender for you to to download. They target mostly the elderly ones who have very low security experience and of course who should have lots of money from possible retirement benefits. Same reason I remind my parents every time that they should never click any links nor even download any files they don't know from their SMS apps or emails.
Looks like it’s very easy for them to connect with their future victims since they got everything on hand, and leave those innocent victims regretting why they fall on such too good to be true that end up as scams. In fact, they even use those well known companies names so they can lure their victims, those who have no ideas have eventually fall on traps while those who are quite knowledgeable about the scheme easily ignore those text messages.