diff --git a/internal/api/account.go b/internal/api/account.go
index e169a9d..3a2d278 100644
--- a/internal/api/account.go
+++ b/internal/api/account.go
@@ -86,6 +86,7 @@ func (a accountAPI) Create(ctx context.Context, i AccountCreateInput) (*Account,
 			Account Account
 		} `graphql:"addAccount(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.SecurityContext)
 	input := map[string]any{"input": i}
 	if err := a.c.Mutate(ctx, &mutation, input); err != nil {
 		return nil, err
@@ -101,6 +102,7 @@ func (a accountAPI) Update(ctx context.Context, i AccountUpdateInput) (*Account,
 			Account Account
 		} `graphql:"updateAccount(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.SecurityContext)
 	input := map[string]any{"input": i}
 	if err := a.c.Mutate(ctx, &mutation, input); err != nil {
 		return nil, err
diff --git a/internal/api/account_discovery.go b/internal/api/account_discovery.go
index 0be3dcc..116e9e2 100644
--- a/internal/api/account_discovery.go
+++ b/internal/api/account_discovery.go
@@ -150,6 +150,7 @@ func (a accountDiscoveryAPI) UpsertAzure(ctx context.Context, input AccountDisco
 			AccountDiscovery AccountDiscovery
 		} `graphql:"upsertAzureAccountDiscovery(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, input.ClientSecret)
 	variables := map[string]any{"input": input}
 	if err := a.c.Mutate(ctx, &mutation, variables); err != nil {
 		return nil, err
@@ -164,6 +165,7 @@ func (a accountDiscoveryAPI) UpsertGCP(ctx context.Context, input AccountDiscove
 			AccountDiscovery AccountDiscovery
 		} `graphql:"upsertGCPAccountDiscovery(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, input.CredentialJSON)
 	variables := map[string]any{"input": input}
 	if err := a.c.Mutate(ctx, &mutation, variables); err != nil {
 		return nil, err
diff --git a/internal/api/api.go b/internal/api/api.go
index 384cc92..233f121 100644
--- a/internal/api/api.go
+++ b/internal/api/api.go
@@ -3,10 +3,6 @@
 // package api provides access to the GraphQL API.
 package api
 
-import (
-	"context"
-)
-
 // API provides access to the GraphQL API.
 type API struct {
 	Account                 accountAPI
@@ -33,8 +29,8 @@ type API struct {
 }
 
 // New creates an API wrapper.
-func New(ctx context.Context, config ClientConfig) *API {
-	c := newClient(ctx, config)
+func New(config ClientConfig) *API {
+	c := newClient(config)
 	return &API{
 		Account:                 accountAPI{c},
 		AccountDiscovery:        accountDiscoveryAPI{c},
diff --git a/internal/api/binding.go b/internal/api/binding.go
index ff45e35..54adf1d 100644
--- a/internal/api/binding.go
+++ b/internal/api/binding.go
@@ -69,6 +69,13 @@ type BindingExecutionConfig struct {
 	Variables       *string                                `graphql:"variables" json:"variables"`
 }
 
+func (c BindingExecutionConfig) securityContext() *string {
+	if c.SecurityContext == nil {
+		return nil
+	}
+	return &c.SecurityContext.Default
+}
+
 // BindingExecutionConfigDryRun holds the dry run configuration for a binding execution config.
 type BindingExecutionConfigDryRun struct {
 	Default bool `graphql:"default" json:"default"`
@@ -158,6 +165,7 @@ func (a bindingAPI) Create(ctx context.Context, i BindingCreateInput) (*Binding,
 			Binding Binding
 		} `graphql:"addBinding(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.ExecutionConfig.securityContext())
 	input := map[string]any{"input": i}
 	if err := a.c.Mutate(ctx, &mutation, input); err != nil {
 		return nil, err
@@ -173,6 +181,7 @@ func (a bindingAPI) Update(ctx context.Context, i BindingUpdateInput) (*Binding,
 			Binding Binding
 		} `graphql:"updateBinding(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.ExecutionConfig.securityContext())
 	input := map[string]any{"input": i}
 	if err := a.c.Mutate(ctx, &mutation, input); err != nil {
 		return nil, err
diff --git a/internal/api/client.go b/internal/api/client.go
index 5479be9..7c6ac8e 100644
--- a/internal/api/client.go
+++ b/internal/api/client.go
@@ -49,8 +49,29 @@ func (c *client) Mutate(ctx context.Context, m any, variables map[string]any) er
 	return nil
 }
 
+// maskSecrets returns a context whose logs show the given secrets only as a
+// mask. Request bodies carry them JSON-encoded, so that form is masked too.
+func maskSecrets(ctx context.Context, secrets ...*string) context.Context {
+	var masked []string
+	for _, s := range secrets {
+		if s == nil || *s == "" {
+			continue
+		}
+		masked = append(masked, *s)
+		if encoded, err := json.Marshal(*s); err == nil {
+			if e := string(encoded[1 : len(encoded)-1]); e != *s {
+				masked = append(masked, e)
+			}
+		}
+	}
+	if len(masked) == 0 {
+		return ctx
+	}
+	return tflog.MaskLogStrings(ctx, masked...)
+}
+
 // newClient returns a configured graphql Client.
-func newClient(ctx context.Context, config ClientConfig) *client {
+func newClient(config ClientConfig) *client {
 	tfLog := hclog.LevelFromString(os.Getenv("TF_LOG"))
 	logBody := tfLog == hclog.Debug || tfLog == hclog.Trace
 
@@ -60,7 +81,6 @@ func newClient(ctx context.Context, config ClientConfig) *client {
 				APIKey:  config.APIKey,
 				Version: config.Version,
 				Base: &logTransport{
-					Ctx:     ctx,
 					Base:    http.DefaultTransport,
 					LogBody: logBody,
 				},
@@ -89,9 +109,9 @@ func (t *authTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 	return t.Base.RoundTrip(req)
 }
 
-// logTransport is an http.Transport that logs requests/responses.
+// logTransport is an http.Transport that logs requests/responses through the
+// request's context, so the logs apply whatever masking the caller set up.
 type logTransport struct {
-	Ctx     context.Context
 	Base    http.RoundTripper
 	LogBody bool
 }
@@ -109,7 +129,7 @@ func (t *logTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 	}
 
 	tflog.Debug(
-		t.Ctx,
+		req.Context(),
 		"Performing GraphQL request",
 		map[string]any{
 			"req_method": req.Method,
@@ -129,7 +149,7 @@ func (t *logTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 		}
 
 		tflog.Debug(
-			t.Ctx,
+			req.Context(),
 			"Got GraphQL response",
 			map[string]any{
 				"req_method":       req.Method,
diff --git a/internal/api/client_test.go b/internal/api/client_test.go
index 708885a..12dab9b 100644
--- a/internal/api/client_test.go
+++ b/internal/api/client_test.go
@@ -3,11 +3,15 @@
 package api
 
 import (
+	"bytes"
+	"context"
+	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
 	"testing"
 
+	"github.com/hashicorp/terraform-plugin-log/tflogtest"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -95,6 +99,39 @@ func TestErrorTransport_400WithoutGraphQLErrors(t *testing.T) {
 	assert.Equal(t, "not json", string(body))
 }
 
+func TestMutationMasksSecretsInDebugLogs(t *testing.T) {
+	t.Setenv("TF_LOG", "DEBUG")
+	apiKey := "plain-secret-api-key"
+	// JSON-encoding escapes this one, so the request body carries a form that
+	// differs from the value itself.
+	appKey := "app\"secret\nkey"
+
+	var reqBody string
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		body, _ := io.ReadAll(r.Body)
+		reqBody = string(body)
+		_, _ = w.Write([]byte(`{"data":{"updateDatadogIntegration":{"datadogIntegration":{"configured":true,"statusInfo":{"details":[]}},"problems":[]}}}`))
+	}))
+	defer server.Close()
+
+	var output bytes.Buffer
+	ctx := tflogtest.RootLogger(context.Background(), &output)
+	api := New(ClientConfig{Endpoint: server.URL, APIKey: "token"})
+	_, err := api.DatadogIntegration.Update(ctx, DatadogIntegrationInput{APIKey: &apiKey, AppKey: &appKey})
+	assert.NoError(t, err)
+	assert.Contains(t, reqBody, apiKey, "the request itself carries the secret")
+
+	entries, err := tflogtest.MultilineJSONDecode(&output)
+	assert.NoError(t, err)
+	assert.Len(t, entries, 2)
+	for _, entry := range entries {
+		logged := fmt.Sprint(entry["req_body"])
+		assert.Contains(t, logged, `"apiKey":"***"`)
+		assert.Contains(t, logged, `"appKey":"***"`)
+		assert.NotContains(t, logged, "secret")
+	}
+}
+
 func TestErrorTransport_NonBadRequest(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
diff --git a/internal/api/configuration_profile.go b/internal/api/configuration_profile.go
index 3edfe89..5fc14fb 100644
--- a/internal/api/configuration_profile.go
+++ b/internal/api/configuration_profile.go
@@ -361,6 +361,7 @@ func (a configurationProfileAPI) UpsertJira(ctx context.Context, input JiraConfi
 			Configuration ConfigurationProfile
 		} `graphql:"addJiraProfile(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, &input.APIKey)
 	variables := map[string]any{
 		"input": jiraConfigurationInput{
 			JiraConfiguration: input,
@@ -437,6 +438,11 @@ func (a configurationProfileAPI) UpsertSlack(ctx context.Context, config SlackCo
 			Configuration ConfigurationProfile
 		} `graphql:"addSlackProfile(input: $input)"`
 	}
+	secrets := []*string{config.Token}
+	for _, w := range config.Webhooks {
+		secrets = append(secrets, &w.URL)
+	}
+	ctx = maskSecrets(ctx, secrets...)
 	variables := map[string]any{
 		"input": slackConfigurationInput{
 			SlackConfiguration: config,
@@ -463,6 +469,7 @@ func (a configurationProfileAPI) UpsertServiceNow(ctx context.Context, config Se
 			Configuration ConfigurationProfile
 		} `graphql:"addServiceNowProfile(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, &config.Password)
 	variables := map[string]any{
 		"input": serviceNowConfigurationInput{
 			ServiceNowConfiguration: config,
@@ -489,6 +496,7 @@ func (a configurationProfileAPI) UpsertSymphony(ctx context.Context, config Symp
 			Configuration ConfigurationProfile
 		} `graphql:"addSymphonyProfile(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, &config.PrivateKey)
 	variables := map[string]any{
 		"input": symphonyConfigurationInput{
 			SymphonyConfiguration: config,
@@ -515,6 +523,9 @@ func (a configurationProfileAPI) UpsertEmail(ctx context.Context, input EmailCon
 			Configuration ConfigurationProfile
 		} `graphql:"addEmailProfile(input: $input)"`
 	}
+	if input.SMTP != nil {
+		ctx = maskSecrets(ctx, input.SMTP.Password)
+	}
 	variables := map[string]any{
 		"input": emailConfigurationInput{
 			EmailConfiguration: input,
diff --git a/internal/api/datadog_integration.go b/internal/api/datadog_integration.go
index 6ef60fe..3997eaa 100644
--- a/internal/api/datadog_integration.go
+++ b/internal/api/datadog_integration.go
@@ -58,6 +58,7 @@ func (a datadogIntegrationAPI) Update(ctx context.Context, input DatadogIntegrat
 			Problems           []problem
 		} `graphql:"updateDatadogIntegration(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, input.APIKey, input.AppKey)
 	if err := a.c.Mutate(ctx, &mutation, map[string]any{"input": input}); err != nil {
 		return nil, err
 	}
diff --git a/internal/api/repository.go b/internal/api/repository.go
index c42b850..1ca95eb 100644
--- a/internal/api/repository.go
+++ b/internal/api/repository.go
@@ -71,6 +71,19 @@ func (i *RepositoryConfigAuthInput) GetGraphQLType() string {
 	return "RepositoryConfigAuthInput"
 }
 
+func (i *RepositoryConfigAuthInput) secrets() []*string {
+	if i == nil {
+		return nil
+	}
+	var secrets []*string
+	for _, key := range []string{"authToken", "sshPrivateKey", "sshPassphrase"} {
+		if v, ok := i.m[key].(*string); ok {
+			secrets = append(secrets, v)
+		}
+	}
+	return secrets
+}
+
 type RepositoryCreateInput struct {
 	URL         string                     `json:"url"`
 	Name        string                     `json:"name"`
@@ -169,6 +182,7 @@ func (a repositoryAPI) Create(ctx context.Context, i RepositoryCreateInput) (*Re
 			Problems         []problem
 		} `graphql:"addRepositoryConfig(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.Auth.secrets()...)
 	if err := a.c.Mutate(ctx, &m, map[string]any{"input": i}); err != nil {
 		return nil, err
 	}
@@ -185,6 +199,7 @@ func (a repositoryAPI) Update(ctx context.Context, i RepositoryUpdateInput) (*Re
 			Problems         []problem
 		} `graphql:"updateRepositoryConfig(input: $input)"`
 	}
+	ctx = maskSecrets(ctx, i.Auth.secrets()...)
 	if err := a.c.Mutate(ctx, &m, map[string]any{"input": i}); err != nil {
 		return nil, err
 	}
diff --git a/internal/provider/provider.go b/internal/provider/provider.go
index 4dcfe56..45e0d09 100644
--- a/internal/provider/provider.go
+++ b/internal/provider/provider.go
@@ -114,7 +114,6 @@ func (p *stackletProvider) Configure(ctx context.Context, req provider.Configure
 
 	// Make provider data accessible to the Configure method of resources and data sources
 	providerData := providerdata.New(
-		ctx,
 		api.ClientConfig{
 			Endpoint: creds.Endpoint,
 			APIKey:   creds.APIKey,
diff --git a/internal/providerdata/providerdata.go b/internal/providerdata/providerdata.go
index 9968f11..96bcd36 100644
--- a/internal/providerdata/providerdata.go
+++ b/internal/providerdata/providerdata.go
@@ -3,7 +3,6 @@
 package providerdata
 
 import (
-	"context"
 	"fmt"
 
 	"github.com/hashicorp/terraform-plugin-framework/datasource"
@@ -18,9 +17,9 @@ type providerData struct {
 }
 
 // New returns configured provider data.
-func New(ctx context.Context, config api.ClientConfig) *providerData {
+func New(config api.ClientConfig) *providerData {
 	return &providerData{
-		API: api.New(ctx, config),
+		API: api.New(config),
 	}
 }